Added node_modules for the updating to work properly.

10 files changed, 1866 insertions, 0 deletions

diff --git a/node_modules/istanbul-lib-instrument/CHANGELOG.md b/node_modules/istanbul-lib-instrument/CHANGELOG.md
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+++ b/node_modules/istanbul-lib-instrument/CHANGELOG.md
@@ -0,0 +1,617 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## [5.1.0](https://www.github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument-v5.0.4...istanbul-lib-instrument-v5.1.0) (2021-10-27)
+
+
+### Features
+
+* option to evaluate logical truthiness, for applications such as fuzzing ([#629](https://www.github.com/istanbuljs/istanbuljs/issues/629)) ([a743b84](https://www.github.com/istanbuljs/istanbuljs/commit/a743b8442e977f0c77ffa282eed7ac84ca200d1f))
+
+### [5.0.4](https://www.github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument-v5.0.3...istanbul-lib-instrument-v5.0.4) (2021-10-16)
+
+
+### Bug Fixes
+
+* **magic-value:** make incrementing magic value a manual step ([#641](https://www.github.com/istanbuljs/istanbuljs/issues/641)) ([823010b](https://www.github.com/istanbuljs/istanbuljs/commit/823010b821cf81bd91377d75fc83f0875925db66))
+
+### [5.0.3](https://www.github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument-v5.0.2...istanbul-lib-instrument-v5.0.3) (2021-10-06)
+
+
+### Bug Fixes
+
+* coverage.branchMap else location. ([#633](https://www.github.com/istanbuljs/istanbuljs/issues/633)) ([eb4b4ec](https://www.github.com/istanbuljs/istanbuljs/commit/eb4b4ec8f4b858655a66b0033fcc662f44ef4cc9))
+
+### [5.0.2](https://www.github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument-v5.0.1...istanbul-lib-instrument-v5.0.2) (2021-09-13)
+
+
+### Bug Fixes
+
+* **build:** verfiy automated publication ([b232690](https://www.github.com/istanbuljs/istanbuljs/commit/b232690193f4b524332046c96dd1cdc6e881c6c7))
+
+### [5.0.1](https://www.github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument-v5.0.0...istanbul-lib-instrument-v5.0.1) (2021-09-13)
+
+
+### Bug Fixes
+
+* **build:** verfiy automated publication ([74c96bd](https://www.github.com/istanbuljs/istanbuljs/commit/74c96bdc4224a06e2e1166ebd9adf8faf28438b1))
+
+## [5.0.0](https://www.github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument-v4.0.3...istanbul-lib-instrument-v5.0.0) (2021-09-13)
+
+
+### ⚠ BREAKING CHANGES
+
+* istanbul-lib-instrument no longer uses babel
+
+### Code Refactoring
+
+* istanbul-lib-instrument no longer uses babel ([8d3badb](https://www.github.com/istanbuljs/istanbuljs/commit/8d3badb8f6c9a4bed9af8e19c3ac6459ebd7267b))
+
+## [4.0.3](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@4.0.2...istanbul-lib-instrument@4.0.3) (2020-05-09)
+
+
+### Bug Fixes
+
+* Prevent readInitialCoverage from reading babel config ([#562](https://github.com/istanbuljs/istanbuljs/issues/562)) ([49b4745](https://github.com/istanbuljs/istanbuljs/commit/49b474525c15e703642916011bd86f663aca0c3d))
+
+
+
+
+
+## [4.0.2](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@4.0.1...istanbul-lib-instrument@4.0.2) (2020-05-06)
+
+
+### Bug Fixes
+
+* Add ts-ignore to reassignment of generated function ([#557](https://github.com/istanbuljs/istanbuljs/issues/557)) ([817efb0](https://github.com/istanbuljs/istanbuljs/commit/817efb04fc161efae426b2231a0221606b09f559))
+* Use @babel/core for all babel imports. ([#555](https://github.com/istanbuljs/istanbuljs/issues/555)) ([a99a13e](https://github.com/istanbuljs/istanbuljs/commit/a99a13ee6931fc124a2a723c3f511cdbcb0aa81d))
+
+
+
+
+
+## [4.0.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@4.0.0...istanbul-lib-instrument@4.0.1) (2020-02-03)
+
+
+### Bug Fixes
+
+* Always call coverage initialization function ([#524](https://github.com/istanbuljs/istanbuljs/issues/524)) ([c6536c1](https://github.com/istanbuljs/istanbuljs/commit/c6536c14bf0663ca7e0493dd40ea132b05352594))
+
+
+
+
+
+# [4.0.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@4.0.0-alpha.3...istanbul-lib-instrument@4.0.0) (2019-12-20)
+
+**Note:** Version bump only for package istanbul-lib-instrument
+
+
+
+
+
+# [4.0.0-alpha.3](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@4.0.0-alpha.2...istanbul-lib-instrument@4.0.0-alpha.3) (2019-12-07)
+
+**Note:** Version bump only for package istanbul-lib-instrument
+
+
+
+
+
+# [4.0.0-alpha.2](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@4.0.0-alpha.1...istanbul-lib-instrument@4.0.0-alpha.2) (2019-11-01)
+
+
+### Bug Fixes
+
+* Produce properly merged source-maps when inputSourceMap is provided ([#487](https://github.com/istanbuljs/istanbuljs/issues/487)) ([8f8c88e](https://github.com/istanbuljs/istanbuljs/commit/8f8c88e3a2add4c08729e41e356aa7981dc69d4d))
+
+
+
+
+
+# [4.0.0-alpha.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@4.0.0-alpha.0...istanbul-lib-instrument@4.0.0-alpha.1) (2019-10-06)
+
+
+### Bug Fixes
+
+* Eliminate babel hoisting of the coverage variable ([#481](https://github.com/istanbuljs/istanbuljs/issues/481)) ([8dfbcba](https://github.com/istanbuljs/istanbuljs/commit/8dfbcba)), closes [#92](https://github.com/istanbuljs/istanbuljs/issues/92)
+* Honor ignore hints in chained if statements ([#469](https://github.com/istanbuljs/istanbuljs/issues/469)) ([a629770](https://github.com/istanbuljs/istanbuljs/commit/a629770)), closes [#468](https://github.com/istanbuljs/istanbuljs/issues/468)
+* Populate lastFileCoverage for already instrumented files ([#470](https://github.com/istanbuljs/istanbuljs/issues/470)) ([ea6d779](https://github.com/istanbuljs/istanbuljs/commit/ea6d779)), closes [istanbuljs/nyc#594](https://github.com/istanbuljs/nyc/issues/594)
+
+
+### Features
+
+* Use @istanbuljs/schema to pull defaults ([#485](https://github.com/istanbuljs/istanbuljs/issues/485)) ([87e27f3](https://github.com/istanbuljs/istanbuljs/commit/87e27f3)), closes [#460](https://github.com/istanbuljs/istanbuljs/issues/460)
+
+
+### BREAKING CHANGES
+
+* The defaults for `autoWrap`, `preserveComments`,
+`esModules` and `produceSourceMap` are now true.  This applies only to
+the stand-alone instrumenter, the visitor does not use these options.
+* The `flow` and `jsx` parser plugins are no longer
+enabled by default.  This applies only to the stand-alone instrumenter,
+the visitor does not use this option.
+* The `plugins` option of the stand-alone instrumenter
+has been renamed to `parserPlugins` to match nyc.
+
+
+
+
+
+# [4.0.0-alpha.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@3.3.0...istanbul-lib-instrument@4.0.0-alpha.0) (2019-06-19)
+
+
+### Features
+
+* Update dependencies, require Node.js 8 ([#401](https://github.com/istanbuljs/istanbuljs/issues/401)) ([bf3a539](https://github.com/istanbuljs/istanbuljs/commit/bf3a539))
+
+
+### BREAKING CHANGES
+
+* Node.js 8 is now required
+
+
+
+
+
+# [3.3.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@3.2.0...istanbul-lib-instrument@3.3.0) (2019-04-24)
+
+
+### Features
+
+* Enable classProperties and classPrivateProperties parsers and coverage. ([#379](https://github.com/istanbuljs/istanbuljs/issues/379)) ([c09dc38](https://github.com/istanbuljs/istanbuljs/commit/c09dc38))
+
+
+
+
+
+# [3.2.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@3.1.2...istanbul-lib-instrument@3.2.0) (2019-04-09)
+
+
+### Features
+
+* Add bigInt and importMeta to default parser plugins. ([#356](https://github.com/istanbuljs/istanbuljs/issues/356)) ([fb4d6ed](https://github.com/istanbuljs/istanbuljs/commit/fb4d6ed)), closes [#338](https://github.com/istanbuljs/istanbuljs/issues/338)
+
+
+
+
+
+## [3.1.2](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@3.1.1...istanbul-lib-instrument@3.1.2) (2019-04-03)
+
+
+### Bug Fixes
+
+* Be more friendly to ts-node. ([#352](https://github.com/istanbuljs/istanbuljs/issues/352)) ([40d15f5](https://github.com/istanbuljs/istanbuljs/commit/40d15f5)), closes [#336](https://github.com/istanbuljs/istanbuljs/issues/336)
+
+
+
+
+
+## [3.1.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@3.1.0...istanbul-lib-instrument@3.1.1) (2019-03-12)
+
+
+### Bug Fixes
+
+* Honor istanbul ignore next hints placed before export statement. ([#298](https://github.com/istanbuljs/istanbuljs/issues/298)) ([f24795d](https://github.com/istanbuljs/istanbuljs/commit/f24795d)), closes [#297](https://github.com/istanbuljs/istanbuljs/issues/297)
+
+
+
+
+
+# [3.1.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@3.0.1...istanbul-lib-instrument@3.1.0) (2019-01-26)
+
+
+### Features
+
+* dont skip for loop initialization instrumentation ([#188](https://github.com/istanbuljs/istanbuljs/issues/188)) ([2e0258e](https://github.com/istanbuljs/istanbuljs/commit/2e0258e))
+* New options coverageGlobalScope and coverageGlobalScopeFunc. ([#200](https://github.com/istanbuljs/istanbuljs/issues/200)) ([25509c7](https://github.com/istanbuljs/istanbuljs/commit/25509c7)), closes [#199](https://github.com/istanbuljs/istanbuljs/issues/199)
+
+
+
+
+
+<a name="3.0.1"></a>
+## [3.0.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@3.0.0...istanbul-lib-instrument@3.0.1) (2018-12-25)
+
+
+
+
+**Note:** Version bump only for package istanbul-lib-instrument
+
+<a name="3.0.0"></a>
+# [3.0.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.3.2...istanbul-lib-instrument@3.0.0) (2018-09-06)
+
+
+### Chores
+
+* Update test for babel 7. ([#218](https://github.com/istanbuljs/istanbuljs/issues/218)) ([9cf4d43](https://github.com/istanbuljs/istanbuljs/commit/9cf4d43)), closes [#205](https://github.com/istanbuljs/istanbuljs/issues/205)
+
+
+### Features
+
+* Add option plugins ([#205](https://github.com/istanbuljs/istanbuljs/issues/205)) ([312f81f](https://github.com/istanbuljs/istanbuljs/commit/312f81f))
+* Update babel to 7.0.0. ([#215](https://github.com/istanbuljs/istanbuljs/issues/215)) ([8a96613](https://github.com/istanbuljs/istanbuljs/commit/8a96613))
+
+
+### BREAKING CHANGES
+
+* was added which requires an option for the `decorators`
+plugin.  Add it to get tests working again, commit updated api.md.
+
+
+
+
+<a name="2.3.2"></a>
+## [2.3.2](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.3.1...istanbul-lib-instrument@2.3.2) (2018-07-24)
+
+
+
+
+**Note:** Version bump only for package istanbul-lib-instrument
+
+<a name="2.3.1"></a>
+## [2.3.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.3.0...istanbul-lib-instrument@2.3.1) (2018-07-07)
+
+
+### Bug Fixes
+
+* Don't ignore src/visitor.js for self test. ([#194](https://github.com/istanbuljs/istanbuljs/issues/194)) ([71b815d](https://github.com/istanbuljs/istanbuljs/commit/71b815d))
+
+
+
+
+<a name="2.3.0"></a>
+# [2.3.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.2.1...istanbul-lib-instrument@2.3.0) (2018-06-27)
+
+
+### Features
+
+* update pinned babel version to latest release. ([#189](https://github.com/istanbuljs/istanbuljs/issues/189)) ([ac8ec07](https://github.com/istanbuljs/istanbuljs/commit/ac8ec07))
+
+
+
+
+<a name="2.2.1"></a>
+## [2.2.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.2.0...istanbul-lib-instrument@2.2.1) (2018-06-26)
+
+
+### Bug Fixes
+
+* Instrument ObjectMethod's. ([#182](https://github.com/istanbuljs/istanbuljs/issues/182)) ([126f09d](https://github.com/istanbuljs/istanbuljs/commit/126f09d))
+* update default args test guard to work on supported versions. ([#185](https://github.com/istanbuljs/istanbuljs/issues/185)) ([955511a](https://github.com/istanbuljs/istanbuljs/commit/955511a))
+
+
+
+
+<a name="2.2.0"></a>
+# [2.2.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.0.2...istanbul-lib-instrument@2.2.0) (2018-06-06)
+
+
+### Features
+
+* add support for optional catch binding ([#175](https://github.com/istanbuljs/istanbuljs/issues/175)) ([088dd9f](https://github.com/istanbuljs/istanbuljs/commit/088dd9f))
+
+
+
+
+<a name="2.1.0"></a>
+# [2.1.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.0.2...istanbul-lib-instrument@2.1.0) (2018-05-31)
+
+
+### Features
+
+* add support for optional catch binding ([#175](https://github.com/istanbuljs/istanbuljs/issues/175)) ([088dd9f](https://github.com/istanbuljs/istanbuljs/commit/088dd9f))
+
+
+
+
+<a name="2.0.2"></a>
+## [2.0.2](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.0.1...istanbul-lib-instrument@2.0.2) (2018-05-31)
+
+
+
+
+**Note:** Version bump only for package istanbul-lib-instrument
+
+<a name="2.0.1"></a>
+## [2.0.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@2.0.0...istanbul-lib-instrument@2.0.1) (2018-05-31)
+
+
+### Bug Fixes
+
+* should import [@babel](https://github.com/babel)/template ([85a0d1a](https://github.com/istanbuljs/istanbuljs/commit/85a0d1a))
+
+
+
+
+<a name="2.0.0"></a>
+# [2.0.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.10.1...istanbul-lib-instrument@2.0.0) (2018-05-31)
+
+
+### Bug Fixes
+
+* parenthesize superClass on non-idetifier case ([#158](https://github.com/istanbuljs/istanbuljs/issues/158)) ([6202c88](https://github.com/istanbuljs/istanbuljs/commit/6202c88))
+
+
+### Chores
+
+* upgrade babel in instrumenter ([#174](https://github.com/istanbuljs/istanbuljs/issues/174)) ([ce23e91](https://github.com/istanbuljs/istanbuljs/commit/ce23e91))
+
+
+### BREAKING CHANGES
+
+* babel@7 drops Node@4 support
+
+
+
+
+<a name="1.10.1"></a>
+## [1.10.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.10.0...istanbul-lib-instrument@1.10.1) (2018-03-09)
+
+
+### Bug Fixes
+
+* default value for ignorelassMethods ([#151](https://github.com/istanbuljs/istanbuljs/issues/151)) ([5dd88e8](https://github.com/istanbuljs/istanbuljs/commit/5dd88e8))
+
+
+
+
+<a name="1.10.0"></a>
+# [1.10.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.9.2...istanbul-lib-instrument@1.10.0) (2018-03-04)
+
+
+### Features
+
+* allows an array of ignored method names to be provided ([#127](https://github.com/istanbuljs/istanbuljs/issues/127)) ([67918e2](https://github.com/istanbuljs/istanbuljs/commit/67918e2))
+
+
+
+
+<a name="1.9.2"></a>
+## [1.9.2](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.9.1...istanbul-lib-instrument@1.9.2) (2018-02-13)
+
+
+### Bug Fixes
+
+* compatibility with babel 7 ([#135](https://github.com/istanbuljs/istanbuljs/issues/135)) ([6cac849](https://github.com/istanbuljs/istanbuljs/commit/6cac849))
+* handle instrumentation when a function is called Function ([#131](https://github.com/istanbuljs/istanbuljs/issues/131)) ([b12a07e](https://github.com/istanbuljs/istanbuljs/commit/b12a07e))
+* proper passing of the preserveComments option to babel ([#122](https://github.com/istanbuljs/istanbuljs/issues/122)) ([470bb0e](https://github.com/istanbuljs/istanbuljs/commit/470bb0e))
+* update instrument, account for lack of arrow expression ([#119](https://github.com/istanbuljs/istanbuljs/issues/119)) ([#125](https://github.com/istanbuljs/istanbuljs/issues/125)) ([0968206](https://github.com/istanbuljs/istanbuljs/commit/0968206))
+
+
+
+
+<a name="1.9.1"></a>
+## [1.9.1](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.9.0...istanbul-lib-instrument@1.9.1) (2017-10-22)
+
+
+### Bug Fixes
+
+* address issue with class instrumentation ([#111](https://github.com/istanbuljs/istanbuljs/issues/111)) ([cbd1c14](https://github.com/istanbuljs/istanbuljs/commit/cbd1c14))
+
+
+
+
+<a name="1.9.0"></a>
+# [1.9.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.8.0...istanbul-lib-instrument@1.9.0) (2017-10-21)
+
+
+### Bug Fixes
+
+* support conditional expression for superClass ([#106](https://github.com/istanbuljs/istanbuljs/issues/106)) ([aae256f](https://github.com/istanbuljs/istanbuljs/commit/aae256f))
+
+
+### Features
+
+* add support for ignoring entire files ([#108](https://github.com/istanbuljs/istanbuljs/issues/108)) ([f12da65](https://github.com/istanbuljs/istanbuljs/commit/f12da65))
+
+
+
+
+<a name="1.8.0"></a>
+# [1.8.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.7.5...istanbul-lib-instrument@1.8.0) (2017-09-05)
+
+
+### Features
+
+* add support for object-spread syntax ([#82](https://github.com/istanbuljs/istanbuljs/issues/82)) ([28d5566](https://github.com/istanbuljs/istanbuljs/commit/28d5566))
+
+
+
+
+<a name="1.7.5"></a>
+## [1.7.5](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.7.4...istanbul-lib-instrument@1.7.5) (2017-08-23)
+
+
+### Bug Fixes
+
+* name of function is now preserved or named exports ([#79](https://github.com/istanbuljs/istanbuljs/issues/79)) ([2ce8974](https://github.com/istanbuljs/istanbuljs/commit/2ce8974))
+
+
+
+
+<a name="1.7.4"></a>
+## [1.7.4](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.7.3...istanbul-lib-instrument@1.7.4) (2017-07-16)
+
+
+### Bug Fixes
+
+* update increment operator to appropriate expression type ([#74](https://github.com/istanbuljs/istanbuljs/issues/74)) ([dc69e66](https://github.com/istanbuljs/istanbuljs/commit/dc69e66))
+
+
+
+
+<a name="1.7.3"></a>
+## [1.7.3](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.7.2...istanbul-lib-instrument@1.7.3) (2017-06-25)
+
+
+
+
+<a name="1.7.2"></a>
+## [1.7.2](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-instrument@1.7.1...istanbul-lib-instrument@1.7.2) (2017-05-27)
+
+
+### Bug Fixes
+
+* hoist statement counter for class variables, so that name is preserved ([#60](https://github.com/istanbuljs/istanbuljs/issues/60)) ([120d221](https://github.com/istanbuljs/istanbuljs/commit/120d221))
+
+
+
+
+<a name="1.7.1"></a>
+## [1.7.1](https://github.com/istanbuljs/istanbul-lib-instrument/compare/istanbul-lib-instrument@1.7.0...istanbul-lib-instrument@1.7.1) (2017-04-29)
+
+
+### Bug Fixes
+
+* don't instrument a file if it has already been instrumented ([#38](https://github.com/istanbuljs/istanbuljs/issues/38)) ([9c38e4e](https://github.com/istanbuljs/istanbul-lib-instrument/commit/9c38e4e))
+
+
+
+
+<a name="1.7.0"></a>
+# [1.7.0](https://github.com/istanbuljs/istanbul-lib-instrument/compare/istanbul-lib-instrument@1.6.2...istanbul-lib-instrument@1.7.0) (2017-03-27)
+
+
+### Features
+
+* use extended babylon support; adding features such as jsx ([#22](https://github.com/istanbuljs/istanbuljs/issues/22)) ([11c2438](https://github.com/istanbuljs/istanbul-lib-instrument/commit/11c2438))
+
+<a name="1.6.2"></a>
+## [1.6.2](https://github.com/istanbuljs/istanbul-lib-instrument/compare/istanbul-lib-instrument@1.6.1...istanbul-lib-instrument@1.6.2) (2017-03-22)
+
+
+### Bug Fixes
+
+* loc is sometimes not defined, so loc.start fails see [#99](https://github.com/istanbuljs/istanbuljs/issues/99) ([#18](https://github.com/istanbuljs/istanbuljs/issues/18)) ([df85ba6](https://github.com/istanbuljs/istanbul-lib-instrument/commit/df85ba6))
+
+<a name="1.6.1"></a>
+## [1.6.1](https://github.com/istanbuljs/istanbul-lib-instrument/compare/istanbul-lib-instrument@1.6.0...istanbul-lib-instrument@1.6.1) (2017-03-21)
+
+<a name="1.6.0"></a>
+# [1.6.0](https://github.com/istanbuljs/istanbul-lib-instrument/compare/istanbul-lib-instrument@1.4.2...istanbul-lib-instrument@1.6.0) (2017-03-21)
+
+
+### Features
+
+* adds line number property back to coverage.json ([b03b927](https://github.com/istanbuljs/istanbul-lib-instrument/commit/b03b927))
+
+<a name="1.4.2"></a>
+## [1.4.2](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.4.1...v1.4.2) (2017-01-04)
+
+
+### Bug Fixes
+
+* only hoist counter for a smaller subset of function declarations ([9f8931e](https://github.com/istanbuljs/istanbul-lib-instrument/commit/9f8931e))
+
+
+
+<a name="1.4.1"></a>
+## [1.4.1](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.4.0...v1.4.1) (2017-01-04)
+
+
+### Bug Fixes
+
+* address regression discussed in https://github.com/istanbuljs/babel-plugin-istanbul/issues/78 ([#40](https://github.com/istanbuljs/istanbul-lib-instrument/issues/40)) ([7f458a3](https://github.com/istanbuljs/istanbul-lib-instrument/commit/7f458a3))
+
+
+
+<a name="1.4.0"></a>
+# [1.4.0](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.3.1...v1.4.0) (2017-01-02)
+
+
+### Features
+
+* preserve inferred function names ([#38](https://github.com/istanbuljs/istanbul-lib-instrument/issues/38)) ([312666e](https://github.com/istanbuljs/istanbul-lib-instrument/commit/312666e))
+
+
+
+<a name="1.3.1"></a>
+## [1.3.1](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.3.0...v1.3.1) (2016-12-27)
+
+
+### Bug Fixes
+
+* function declaration assignment now retains function name ([#33](https://github.com/istanbuljs/istanbul-lib-instrument/issues/33)) ([2d781da](https://github.com/istanbuljs/istanbul-lib-instrument/commit/2d781da))
+
+
+
+<a name="1.3.0"></a>
+# [1.3.0](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.2.0...v1.3.0) (2016-11-10)
+
+
+### Features
+
+* allow an input source-map to be passed to instrumentSync()  ([#23](https://github.com/istanbuljs/istanbul-lib-instrument/issues/23)) ([b08e4f5](https://github.com/istanbuljs/istanbul-lib-instrument/commit/b08e4f5))
+
+
+
+<a name="1.2.0"></a>
+# [1.2.0](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.1.4...v1.2.0) (2016-10-25)
+
+
+### Features
+
+* implement function to extract empty coverage data from an instrumented file ([#28](https://github.com/istanbuljs/istanbul-lib-instrument/issues/28)) ([06d0ef6](https://github.com/istanbuljs/istanbul-lib-instrument/commit/06d0ef6))
+
+
+
+<a name="1.1.4"></a>
+## [1.1.4](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.1.3...v1.1.4) (2016-10-17)
+
+
+### Bug Fixes
+
+* hoist coverage variable to very top of file ([#26](https://github.com/istanbuljs/istanbul-lib-instrument/issues/26)) ([0225e8c](https://github.com/istanbuljs/istanbul-lib-instrument/commit/0225e8c))
+
+
+
+<a name="1.1.3"></a>
+## [1.1.3](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.1.2...v1.1.3) (2016-09-13)
+
+
+### Performance Improvements
+
+* simplify coverage variable naming https://github.com/istanbuljs/istanbul-lib-instrument/pull/24 ([7252aae](https://github.com/istanbuljs/istanbul-lib-instrument/commit/7252aae))
+
+
+
+<a name="1.1.2"></a>
+## [1.1.2](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.1.1...v1.1.2) (2016-09-08)
+
+
+### Performance Improvements
+
+* use zero-based numeric indices for much faster instrumented code ([#22](https://github.com/istanbuljs/istanbul-lib-instrument/issues/22)) ([5b401f5](https://github.com/istanbuljs/istanbul-lib-instrument/commit/5b401f5))
+
+
+
+<a name="1.1.1"></a>
+## [1.1.1](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.1.0...v1.1.1) (2016-08-30)
+
+
+### Bug Fixes
+
+* upgrade istanbul-lib-coverage ([eb9b1f6](https://github.com/istanbuljs/istanbul-lib-instrument/commit/eb9b1f6))
+
+
+
+<a name="1.1.0"></a>
+# [1.1.0](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.1.0-alpha.4...v1.1.0) (2016-08-11)
+
+
+### Bug Fixes
+
+* guard against invalid loc ([#16](https://github.com/istanbuljs/istanbul-lib-instrument/issues/16)) ([23ebfc3](https://github.com/istanbuljs/istanbul-lib-instrument/commit/23ebfc3))
+
+
+
+<a name="1.1.0-alpha.4"></a>
+# [1.1.0-alpha.4](https://github.com/istanbuljs/istanbul-lib-instrument/compare/v1.0.0-alpha.5...v1.1.0-alpha.4) (2016-07-20)
+
+
+### Bug Fixes
+
+* require more performant babel-generator ([#15](https://github.com/istanbuljs/istanbul-lib-instrument/issues/15)) ([21b2563](https://github.com/istanbuljs/istanbul-lib-instrument/commit/21b2563))
diff --git a/node_modules/istanbul-lib-instrument/LICENSE b/node_modules/istanbul-lib-instrument/LICENSE
new file mode 100644
index 0000000..d55d291
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/LICENSE
@@ -0,0 +1,24 @@
+Copyright 2012-2015 Yahoo! Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the Yahoo! Inc. nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL YAHOO! INC. BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/node_modules/istanbul-lib-instrument/README.md b/node_modules/istanbul-lib-instrument/README.md
new file mode 100644
index 0000000..902831c
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/README.md
@@ -0,0 +1,22 @@
+## istanbul-lib-instrument
+
+[![Build Status](https://travis-ci.org/istanbuljs/istanbul-lib-instrument.svg?branch=master)](https://travis-ci.org/istanbuljs/istanbul-lib-instrument)
+
+Istanbul instrumenter library.
+
+Version 1.1.x now implements instrumentation using `Babel`. The implementation is inspired
+by prior art by @dtinth as demonstrated in the `__coverage__` babel plugin.
+
+It provides 2 "modes" of instrumentation.
+
+-   The old API that is mostly unchanged (except for incompatibilities noted) and
+    performs the instrumentation using babel as a library.
+
+-   A `programVisitor` function for the Babel AST that can be used by a Babel plugin
+    to emit instrumentation for ES6 code directly without any source map
+    processing. This is the preferred path for babel users. The Babel plugin is
+    called `babel-plugin-istanbul`.
+
+Incompatibilities and changes to instrumentation behavior can be found in
+[v0-changes.md](v0-changes.md).
+
diff --git a/node_modules/istanbul-lib-instrument/package.json b/node_modules/istanbul-lib-instrument/package.json
new file mode 100644
index 0000000..cf344c1
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/package.json
@@ -0,0 +1,50 @@
+{
+  "name": "istanbul-lib-instrument",
+  "version": "5.1.0",
+  "description": "Core istanbul API for JS code coverage",
+  "author": "Krishnan Anantheswaran <kananthmail-github@yahoo.com>",
+  "main": "src/index.js",
+  "files": [
+    "src"
+  ],
+  "scripts": {
+    "test": "nyc mocha"
+  },
+  "dependencies": {
+    "@babel/core": "^7.12.3",
+    "@babel/parser": "^7.14.7",
+    "@istanbuljs/schema": "^0.1.2",
+    "istanbul-lib-coverage": "^3.2.0",
+    "semver": "^6.3.0"
+  },
+  "devDependencies": {
+    "@babel/cli": "^7.7.5",
+    "chai": "^4.2.0",
+    "clone": "^2.1.2",
+    "debug": "^4.1.1",
+    "documentation": "^12.1.4",
+    "js-yaml": "^3.13.1",
+    "mocha": "^6.2.3",
+    "nopt": "^4.0.1",
+    "nyc": "^15.1.0"
+  },
+  "license": "BSD-3-Clause",
+  "bugs": {
+    "url": "https://github.com/istanbuljs/istanbuljs/issues"
+  },
+  "homepage": "https://istanbul.js.org/",
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/istanbuljs/istanbuljs.git",
+    "directory": "packages/istanbul-lib-instrument"
+  },
+  "keywords": [
+    "coverage",
+    "istanbul",
+    "js",
+    "instrumentation"
+  ],
+  "engines": {
+    "node": ">=8"
+  }
+}
diff --git a/node_modules/istanbul-lib-instrument/src/constants.js b/node_modules/istanbul-lib-instrument/src/constants.js
new file mode 100644
index 0000000..2cd402b
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/src/constants.js
@@ -0,0 +1,14 @@
+const { createHash } = require('crypto');
+const { name } = require('../package.json');
+// TODO: increment this version if there are schema changes
+// that are not backwards compatible:
+const VERSION = '4';
+
+const SHA = 'sha1';
+module.exports = {
+    SHA,
+    MAGIC_KEY: '_coverageSchema',
+    MAGIC_VALUE: createHash(SHA)
+        .update(name + '@' + VERSION)
+        .digest('hex')
+};
diff --git a/node_modules/istanbul-lib-instrument/src/index.js b/node_modules/istanbul-lib-instrument/src/index.js
new file mode 100644
index 0000000..33d2a4c
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/src/index.js
@@ -0,0 +1,21 @@
+const { defaults } = require('@istanbuljs/schema');
+const Instrumenter = require('./instrumenter');
+const programVisitor = require('./visitor');
+const readInitialCoverage = require('./read-coverage');
+
+/**
+ * createInstrumenter creates a new instrumenter with the
+ * supplied options.
+ * @param {Object} opts - instrumenter options. See the documentation
+ * for the Instrumenter class.
+ */
+function createInstrumenter(opts) {
+    return new Instrumenter(opts);
+}
+
+module.exports = {
+    createInstrumenter,
+    programVisitor,
+    readInitialCoverage,
+    defaultOpts: defaults.instrumenter
+};
diff --git a/node_modules/istanbul-lib-instrument/src/instrumenter.js b/node_modules/istanbul-lib-instrument/src/instrumenter.js
new file mode 100644
index 0000000..95743c7
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/src/instrumenter.js
@@ -0,0 +1,160 @@
+/*
+ Copyright 2012-2015, Yahoo Inc.
+ Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
+ */
+const { transformSync } = require('@babel/core');
+const { defaults } = require('@istanbuljs/schema');
+const programVisitor = require('./visitor');
+const readInitialCoverage = require('./read-coverage');
+
+/**
+ * Instrumenter is the public API for the instrument library.
+ * It is typically used for ES5 code. For ES6 code that you
+ * are already running under `babel` use the coverage plugin
+ * instead.
+ * @param {Object} opts optional.
+ * @param {string} [opts.coverageVariable=__coverage__] name of global coverage variable.
+ * @param {boolean} [opts.reportLogic=false] report boolean value of logical expressions.
+ * @param {boolean} [opts.preserveComments=false] preserve comments in output.
+ * @param {boolean} [opts.compact=true] generate compact code.
+ * @param {boolean} [opts.esModules=false] set to true to instrument ES6 modules.
+ * @param {boolean} [opts.autoWrap=false] set to true to allow `return` statements outside of functions.
+ * @param {boolean} [opts.produceSourceMap=false] set to true to produce a source map for the instrumented code.
+ * @param {Array} [opts.ignoreClassMethods=[]] set to array of class method names to ignore for coverage.
+ * @param {Function} [opts.sourceMapUrlCallback=null] a callback function that is called when a source map URL
+ *     is found in the original code. This function is called with the source file name and the source map URL.
+ * @param {boolean} [opts.debug=false] - turn debugging on.
+ * @param {array} [opts.parserPlugins] - set babel parser plugins, see @istanbuljs/schema for defaults.
+ */
+class Instrumenter {
+    constructor(opts = {}) {
+        this.opts = {
+            ...defaults.instrumenter,
+            ...opts
+        };
+        this.fileCoverage = null;
+        this.sourceMap = null;
+    }
+    /**
+     * instrument the supplied code and track coverage against the supplied
+     * filename. It throws if invalid code is passed to it. ES5 and ES6 syntax
+     * is supported. To instrument ES6 modules, make sure that you set the
+     * `esModules` property to `true` when creating the instrumenter.
+     *
+     * @param {string} code - the code to instrument
+     * @param {string} filename - the filename against which to track coverage.
+     * @param {object} [inputSourceMap] - the source map that maps the not instrumented code back to it's original form.
+     * Is assigned to the coverage object and therefore, is available in the json output and can be used to remap the
+     * coverage to the untranspiled source.
+     * @returns {string} the instrumented code.
+     */
+    instrumentSync(code, filename, inputSourceMap) {
+        if (typeof code !== 'string') {
+            throw new Error('Code must be a string');
+        }
+        filename = filename || String(new Date().getTime()) + '.js';
+        const { opts } = this;
+        let output = {};
+        const babelOpts = {
+            configFile: false,
+            babelrc: false,
+            ast: true,
+            filename: filename || String(new Date().getTime()) + '.js',
+            inputSourceMap,
+            sourceMaps: opts.produceSourceMap,
+            compact: opts.compact,
+            comments: opts.preserveComments,
+            parserOpts: {
+                allowReturnOutsideFunction: opts.autoWrap,
+                sourceType: opts.esModules ? 'module' : 'script',
+                plugins: opts.parserPlugins
+            },
+            plugins: [
+                [
+                    ({ types }) => {
+                        const ee = programVisitor(types, filename, {
+                            coverageVariable: opts.coverageVariable,
+                            reportLogic: opts.reportLogic,
+                            coverageGlobalScope: opts.coverageGlobalScope,
+                            coverageGlobalScopeFunc:
+                                opts.coverageGlobalScopeFunc,
+                            ignoreClassMethods: opts.ignoreClassMethods,
+                            inputSourceMap
+                        });
+
+                        return {
+                            visitor: {
+                                Program: {
+                                    enter: ee.enter,
+                                    exit(path) {
+                                        output = ee.exit(path);
+                                    }
+                                }
+                            }
+                        };
+                    }
+                ]
+            ]
+        };
+
+        const codeMap = transformSync(code, babelOpts);
+
+        if (!output || !output.fileCoverage) {
+            const initialCoverage =
+                readInitialCoverage(codeMap.ast) ||
+                /* istanbul ignore next: paranoid check */ {};
+            this.fileCoverage = initialCoverage.coverageData;
+            this.sourceMap = inputSourceMap;
+            return code;
+        }
+
+        this.fileCoverage = output.fileCoverage;
+        this.sourceMap = codeMap.map;
+        const cb = this.opts.sourceMapUrlCallback;
+        if (cb && output.sourceMappingURL) {
+            cb(filename, output.sourceMappingURL);
+        }
+
+        return codeMap.code;
+    }
+    /**
+     * callback-style instrument method that calls back with an error
+     * as opposed to throwing one. Note that in the current implementation,
+     * the callback will be called in the same process tick and is not asynchronous.
+     *
+     * @param {string} code - the code to instrument
+     * @param {string} filename - the filename against which to track coverage.
+     * @param {Function} callback - the callback
+     * @param {Object} inputSourceMap - the source map that maps the not instrumented code back to it's original form.
+     * Is assigned to the coverage object and therefore, is available in the json output and can be used to remap the
+     * coverage to the untranspiled source.
+     */
+    instrument(code, filename, callback, inputSourceMap) {
+        if (!callback && typeof filename === 'function') {
+            callback = filename;
+            filename = null;
+        }
+        try {
+            const out = this.instrumentSync(code, filename, inputSourceMap);
+            callback(null, out);
+        } catch (ex) {
+            callback(ex);
+        }
+    }
+    /**
+     * returns the file coverage object for the last file instrumented.
+     * @returns {Object} the file coverage object.
+     */
+    lastFileCoverage() {
+        return this.fileCoverage;
+    }
+    /**
+     * returns the source map produced for the last file instrumented.
+     * @returns {null|Object} the source map object.
+     */
+    lastSourceMap() {
+        return this.sourceMap;
+    }
+}
+
+module.exports = Instrumenter;
diff --git a/node_modules/istanbul-lib-instrument/src/read-coverage.js b/node_modules/istanbul-lib-instrument/src/read-coverage.js
new file mode 100644
index 0000000..5b76dbb
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/src/read-coverage.js
@@ -0,0 +1,77 @@
+const { parseSync, traverse } = require('@babel/core');
+const { defaults } = require('@istanbuljs/schema');
+const { MAGIC_KEY, MAGIC_VALUE } = require('./constants');
+
+function getAst(code) {
+    if (typeof code === 'object' && typeof code.type === 'string') {
+        // Assume code is already a babel ast.
+        return code;
+    }
+
+    if (typeof code !== 'string') {
+        throw new Error('Code must be a string');
+    }
+
+    // Parse as leniently as possible
+    return parseSync(code, {
+        babelrc: false,
+        configFile: false,
+        parserOpts: {
+            allowAwaitOutsideFunction: true,
+            allowImportExportEverywhere: true,
+            allowReturnOutsideFunction: true,
+            allowSuperOutsideMethod: true,
+            sourceType: 'script',
+            plugins: defaults.instrumenter.parserPlugins
+        }
+    });
+}
+
+module.exports = function readInitialCoverage(code) {
+    const ast = getAst(code);
+
+    let covScope;
+    traverse(ast, {
+        ObjectProperty(path) {
+            const { node } = path;
+            if (
+                !node.computed &&
+                path.get('key').isIdentifier() &&
+                node.key.name === MAGIC_KEY
+            ) {
+                const magicValue = path.get('value').evaluate();
+                if (!magicValue.confident || magicValue.value !== MAGIC_VALUE) {
+                    return;
+                }
+                covScope =
+                    path.scope.getFunctionParent() ||
+                    path.scope.getProgramParent();
+                path.stop();
+            }
+        }
+    });
+
+    if (!covScope) {
+        return null;
+    }
+
+    const result = {};
+
+    for (const key of ['path', 'hash', 'gcv', 'coverageData']) {
+        const binding = covScope.getOwnBinding(key);
+        if (!binding) {
+            return null;
+        }
+        const valuePath = binding.path.get('init');
+        const value = valuePath.evaluate();
+        if (!value.confident) {
+            return null;
+        }
+        result[key] = value.value;
+    }
+
+    delete result.coverageData[MAGIC_KEY];
+    delete result.coverageData.hash;
+
+    return result;
+};
diff --git a/node_modules/istanbul-lib-instrument/src/source-coverage.js b/node_modules/istanbul-lib-instrument/src/source-coverage.js
new file mode 100644
index 0000000..ec3f234
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/src/source-coverage.js
@@ -0,0 +1,135 @@
+const { classes } = require('istanbul-lib-coverage');
+
+function cloneLocation(loc) {
+    return {
+        start: {
+            line: loc && loc.start.line,
+            column: loc && loc.start.column
+        },
+        end: {
+            line: loc && loc.end.line,
+            column: loc && loc.end.column
+        }
+    };
+}
+/**
+ * SourceCoverage provides mutation methods to manipulate the structure of
+ * a file coverage object. Used by the instrumenter to create a full coverage
+ * object for a file incrementally.
+ *
+ * @private
+ * @param pathOrObj {String|Object} - see the argument for {@link FileCoverage}
+ * @extends FileCoverage
+ * @constructor
+ */
+class SourceCoverage extends classes.FileCoverage {
+    constructor(pathOrObj) {
+        super(pathOrObj);
+        this.meta = {
+            last: {
+                s: 0,
+                f: 0,
+                b: 0
+            }
+        };
+    }
+
+    newStatement(loc) {
+        const s = this.meta.last.s;
+        this.data.statementMap[s] = cloneLocation(loc);
+        this.data.s[s] = 0;
+        this.meta.last.s += 1;
+        return s;
+    }
+
+    newFunction(name, decl, loc) {
+        const f = this.meta.last.f;
+        name = name || '(anonymous_' + f + ')';
+        this.data.fnMap[f] = {
+            name,
+            decl: cloneLocation(decl),
+            loc: cloneLocation(loc),
+            // DEPRECATED: some legacy reports require this info.
+            line: loc && loc.start.line
+        };
+        this.data.f[f] = 0;
+        this.meta.last.f += 1;
+        return f;
+    }
+
+    newBranch(type, loc, isReportLogic = false) {
+        const b = this.meta.last.b;
+        this.data.b[b] = [];
+        this.data.branchMap[b] = {
+            loc: cloneLocation(loc),
+            type,
+            locations: [],
+            // DEPRECATED: some legacy reports require this info.
+            line: loc && loc.start.line
+        };
+        this.meta.last.b += 1;
+        this.maybeNewBranchTrue(type, b, isReportLogic);
+        return b;
+    }
+
+    maybeNewBranchTrue(type, name, isReportLogic) {
+        if (!isReportLogic) {
+            return;
+        }
+        if (type !== 'binary-expr') {
+            return;
+        }
+        this.data.bT = this.data.bT || {};
+        this.data.bT[name] = [];
+    }
+
+    addBranchPath(name, location) {
+        const bMeta = this.data.branchMap[name];
+        const counts = this.data.b[name];
+
+        /* istanbul ignore if: paranoid check */
+        if (!bMeta) {
+            throw new Error('Invalid branch ' + name);
+        }
+        bMeta.locations.push(cloneLocation(location));
+        counts.push(0);
+        this.maybeAddBranchTrue(name);
+        return counts.length - 1;
+    }
+
+    maybeAddBranchTrue(name) {
+        if (!this.data.bT) {
+            return;
+        }
+        const countsTrue = this.data.bT[name];
+        if (!countsTrue) {
+            return;
+        }
+        countsTrue.push(0);
+    }
+
+    /**
+     * Assigns an input source map to the coverage that can be used
+     * to remap the coverage output to the original source
+     * @param sourceMap {object} the source map
+     */
+    inputSourceMap(sourceMap) {
+        this.data.inputSourceMap = sourceMap;
+    }
+
+    freeze() {
+        // prune empty branches
+        const map = this.data.branchMap;
+        const branches = this.data.b;
+        const branchesT = this.data.bT || {};
+        Object.keys(map).forEach(b => {
+            if (map[b].locations.length === 0) {
+                delete map[b];
+                delete branches[b];
+                delete branchesT[b];
+            }
+        });
+    }
+}
+
+module.exports = { SourceCoverage };
diff --git a/node_modules/istanbul-lib-instrument/src/visitor.js b/node_modules/istanbul-lib-instrument/src/visitor.js
new file mode 100644
index 0000000..64f9245
--- /dev/null
+++ b/node_modules/istanbul-lib-instrument/src/visitor.js
@@ -0,0 +1,746 @@
+const { createHash } = require('crypto');
+const { template } = require('@babel/core');
+const { defaults } = require('@istanbuljs/schema');
+const { SourceCoverage } = require('./source-coverage');
+const { SHA, MAGIC_KEY, MAGIC_VALUE } = require('./constants');
+
+// pattern for istanbul to ignore a section
+const COMMENT_RE = /^\s*istanbul\s+ignore\s+(if|else|next)(?=\W|$)/;
+// pattern for istanbul to ignore the whole file
+const COMMENT_FILE_RE = /^\s*istanbul\s+ignore\s+(file)(?=\W|$)/;
+// source map URL pattern
+const SOURCE_MAP_RE = /[#@]\s*sourceMappingURL=(.*)\s*$/m;
+
+// generate a variable name from hashing the supplied file path
+function genVar(filename) {
+    const hash = createHash(SHA);
+    hash.update(filename);
+    return 'cov_' + parseInt(hash.digest('hex').substr(0, 12), 16).toString(36);
+}
+
+// VisitState holds the state of the visitor, provides helper functions
+// and is the `this` for the individual coverage visitors.
+class VisitState {
+    constructor(
+        types,
+        sourceFilePath,
+        inputSourceMap,
+        ignoreClassMethods = [],
+        reportLogic = false
+    ) {
+        this.varName = genVar(sourceFilePath);
+        this.attrs = {};
+        this.nextIgnore = null;
+        this.cov = new SourceCoverage(sourceFilePath);
+
+        if (typeof inputSourceMap !== 'undefined') {
+            this.cov.inputSourceMap(inputSourceMap);
+        }
+        this.ignoreClassMethods = ignoreClassMethods;
+        this.types = types;
+        this.sourceMappingURL = null;
+        this.reportLogic = reportLogic;
+    }
+
+    // should we ignore the node? Yes, if specifically ignoring
+    // or if the node is generated.
+    shouldIgnore(path) {
+        return this.nextIgnore || !path.node.loc;
+    }
+
+    // extract the ignore comment hint (next|if|else) or null
+    hintFor(node) {
+        let hint = null;
+        if (node.leadingComments) {
+            node.leadingComments.forEach(c => {
+                const v = (
+                    c.value || /* istanbul ignore next: paranoid check */ ''
+                ).trim();
+                const groups = v.match(COMMENT_RE);
+                if (groups) {
+                    hint = groups[1];
+                }
+            });
+        }
+        return hint;
+    }
+
+    // extract a source map URL from comments and keep track of it
+    maybeAssignSourceMapURL(node) {
+        const extractURL = comments => {
+            if (!comments) {
+                return;
+            }
+            comments.forEach(c => {
+                const v = (
+                    c.value || /* istanbul ignore next: paranoid check */ ''
+                ).trim();
+                const groups = v.match(SOURCE_MAP_RE);
+                if (groups) {
+                    this.sourceMappingURL = groups[1];
+                }
+            });
+        };
+        extractURL(node.leadingComments);
+        extractURL(node.trailingComments);
+    }
+
+    // for these expressions the statement counter needs to be hoisted, so
+    // function name inference can be preserved
+    counterNeedsHoisting(path) {
+        return (
+            path.isFunctionExpression() ||
+            path.isArrowFunctionExpression() ||
+            path.isClassExpression()
+        );
+    }
+
+    // all the generic stuff that needs to be done on enter for every node
+    onEnter(path) {
+        const n = path.node;
+
+        this.maybeAssignSourceMapURL(n);
+
+        // if already ignoring, nothing more to do
+        if (this.nextIgnore !== null) {
+            return;
+        }
+        // check hint to see if ignore should be turned on
+        const hint = this.hintFor(n);
+        if (hint === 'next') {
+            this.nextIgnore = n;
+            return;
+        }
+        // else check custom node attribute set by a prior visitor
+        if (this.getAttr(path.node, 'skip-all') !== null) {
+            this.nextIgnore = n;
+        }
+
+        // else check for ignored class methods
+        if (
+            path.isFunctionExpression() &&
+            this.ignoreClassMethods.some(
+                name => path.node.id && name === path.node.id.name
+            )
+        ) {
+            this.nextIgnore = n;
+            return;
+        }
+        if (
+            path.isClassMethod() &&
+            this.ignoreClassMethods.some(name => name === path.node.key.name)
+        ) {
+            this.nextIgnore = n;
+            return;
+        }
+    }
+
+    // all the generic stuff on exit of a node,
+    // including reseting ignores and custom node attrs
+    onExit(path) {
+        // restore ignore status, if needed
+        if (path.node === this.nextIgnore) {
+            this.nextIgnore = null;
+        }
+        // nuke all attributes for the node
+        delete path.node.__cov__;
+    }
+
+    // set a node attribute for the supplied node
+    setAttr(node, name, value) {
+        node.__cov__ = node.__cov__ || {};
+        node.__cov__[name] = value;
+    }
+
+    // retrieve a node attribute for the supplied node or null
+    getAttr(node, name) {
+        const c = node.__cov__;
+        if (!c) {
+            return null;
+        }
+        return c[name];
+    }
+
+    //
+    increase(type, id, index) {
+        const T = this.types;
+        const wrap =
+            index !== null
+                ? // If `index` present, turn `x` into `x[index]`.
+                  x => T.memberExpression(x, T.numericLiteral(index), true)
+                : x => x;
+        return T.updateExpression(
+            '++',
+            wrap(
+                T.memberExpression(
+                    T.memberExpression(
+                        T.callExpression(T.identifier(this.varName), []),
+                        T.identifier(type)
+                    ),
+                    T.numericLiteral(id),
+                    true
+                )
+            )
+        );
+    }
+
+    // Reads the logic expression conditions and conditionally increments truthy counter.
+    increaseTrue(type, id, index, node) {
+        const T = this.types;
+        const tempName = `${this.varName}_temp`;
+
+        return T.sequenceExpression([
+            T.assignmentExpression(
+                '=',
+                T.memberExpression(
+                    T.callExpression(T.identifier(this.varName), []),
+                    T.identifier(tempName)
+                ),
+                node // Only evaluates once.
+            ),
+            T.parenthesizedExpression(
+                T.conditionalExpression(
+                    T.memberExpression(
+                        T.callExpression(T.identifier(this.varName), []),
+                        T.identifier(tempName)
+                    ),
+                    this.increase(type, id, index),
+                    T.nullLiteral()
+                )
+            ),
+            T.memberExpression(
+                T.callExpression(T.identifier(this.varName), []),
+                T.identifier(tempName)
+            )
+        ]);
+    }
+
+    insertCounter(path, increment) {
+        const T = this.types;
+        if (path.isBlockStatement()) {
+            path.node.body.unshift(T.expressionStatement(increment));
+        } else if (path.isStatement()) {
+            path.insertBefore(T.expressionStatement(increment));
+        } else if (
+            this.counterNeedsHoisting(path) &&
+            T.isVariableDeclarator(path.parentPath)
+        ) {
+            // make an attempt to hoist the statement counter, so that
+            // function names are maintained.
+            const parent = path.parentPath.parentPath;
+            if (parent && T.isExportNamedDeclaration(parent.parentPath)) {
+                parent.parentPath.insertBefore(
+                    T.expressionStatement(increment)
+                );
+            } else if (
+                parent &&
+                (T.isProgram(parent.parentPath) ||
+                    T.isBlockStatement(parent.parentPath))
+            ) {
+                parent.insertBefore(T.expressionStatement(increment));
+            } else {
+                path.replaceWith(T.sequenceExpression([increment, path.node]));
+            }
+        } /* istanbul ignore else: not expected */ else if (
+            path.isExpression()
+        ) {
+            path.replaceWith(T.sequenceExpression([increment, path.node]));
+        } else {
+            console.error(
+                'Unable to insert counter for node type:',
+                path.node.type
+            );
+        }
+    }
+
+    insertStatementCounter(path) {
+        /* istanbul ignore if: paranoid check */
+        if (!(path.node && path.node.loc)) {
+            return;
+        }
+        const index = this.cov.newStatement(path.node.loc);
+        const increment = this.increase('s', index, null);
+        this.insertCounter(path, increment);
+    }
+
+    insertFunctionCounter(path) {
+        const T = this.types;
+        /* istanbul ignore if: paranoid check */
+        if (!(path.node && path.node.loc)) {
+            return;
+        }
+        const n = path.node;
+
+        let dloc = null;
+        // get location for declaration
+        switch (n.type) {
+            case 'FunctionDeclaration':
+            case 'FunctionExpression':
+                /* istanbul ignore else: paranoid check */
+                if (n.id) {
+                    dloc = n.id.loc;
+                }
+                break;
+        }
+        if (!dloc) {
+            dloc = {
+                start: n.loc.start,
+                end: { line: n.loc.start.line, column: n.loc.start.column + 1 }
+            };
+        }
+
+        const name = path.node.id ? path.node.id.name : path.node.name;
+        const index = this.cov.newFunction(name, dloc, path.node.body.loc);
+        const increment = this.increase('f', index, null);
+        const body = path.get('body');
+        /* istanbul ignore else: not expected */
+        if (body.isBlockStatement()) {
+            body.node.body.unshift(T.expressionStatement(increment));
+        } else {
+            console.error(
+                'Unable to process function body node type:',
+                path.node.type
+            );
+        }
+    }
+
+    getBranchIncrement(branchName, loc) {
+        const index = this.cov.addBranchPath(branchName, loc);
+        return this.increase('b', branchName, index);
+    }
+
+    getBranchLogicIncrement(path, branchName, loc) {
+        const index = this.cov.addBranchPath(branchName, loc);
+        return [
+            this.increase('b', branchName, index),
+            this.increaseTrue('bT', branchName, index, path.node)
+        ];
+    }
+
+    insertBranchCounter(path, branchName, loc) {
+        const increment = this.getBranchIncrement(
+            branchName,
+            loc || path.node.loc
+        );
+        this.insertCounter(path, increment);
+    }
+
+    findLeaves(node, accumulator, parent, property) {
+        if (!node) {
+            return;
+        }
+        if (node.type === 'LogicalExpression') {
+            const hint = this.hintFor(node);
+            if (hint !== 'next') {
+                this.findLeaves(node.left, accumulator, node, 'left');
+                this.findLeaves(node.right, accumulator, node, 'right');
+            }
+        } else {
+            accumulator.push({
+                node,
+                parent,
+                property
+            });
+        }
+    }
+}
+
+// generic function that takes a set of visitor methods and
+// returns a visitor object with `enter` and `exit` properties,
+// such that:
+//
+// * standard entry processing is done
+// * the supplied visitors are called only when ignore is not in effect
+//   This relieves them from worrying about ignore states and generated nodes.
+// * standard exit processing is done
+//
+function entries(...enter) {
+    // the enter function
+    const wrappedEntry = function(path, node) {
+        this.onEnter(path);
+        if (this.shouldIgnore(path)) {
+            return;
+        }
+        enter.forEach(e => {
+            e.call(this, path, node);
+        });
+    };
+    const exit = function(path, node) {
+        this.onExit(path, node);
+    };
+    return {
+        enter: wrappedEntry,
+        exit
+    };
+}
+
+function coverStatement(path) {
+    this.insertStatementCounter(path);
+}
+
+/* istanbul ignore next: no node.js support */
+function coverAssignmentPattern(path) {
+    const n = path.node;
+    const b = this.cov.newBranch('default-arg', n.loc);
+    this.insertBranchCounter(path.get('right'), b);
+}
+
+function coverFunction(path) {
+    this.insertFunctionCounter(path);
+}
+
+function coverVariableDeclarator(path) {
+    this.insertStatementCounter(path.get('init'));
+}
+
+function coverClassPropDeclarator(path) {
+    this.insertStatementCounter(path.get('value'));
+}
+
+function makeBlock(path) {
+    const T = this.types;
+    if (!path.node) {
+        path.replaceWith(T.blockStatement([]));
+    }
+    if (!path.isBlockStatement()) {
+        path.replaceWith(T.blockStatement([path.node]));
+        path.node.loc = path.node.body[0].loc;
+        path.node.body[0].leadingComments = path.node.leadingComments;
+        path.node.leadingComments = undefined;
+    }
+}
+
+function blockProp(prop) {
+    return function(path) {
+        makeBlock.call(this, path.get(prop));
+    };
+}
+
+function makeParenthesizedExpressionForNonIdentifier(path) {
+    const T = this.types;
+    if (path.node && !path.isIdentifier()) {
+        path.replaceWith(T.parenthesizedExpression(path.node));
+    }
+}
+
+function parenthesizedExpressionProp(prop) {
+    return function(path) {
+        makeParenthesizedExpressionForNonIdentifier.call(this, path.get(prop));
+    };
+}
+
+function convertArrowExpression(path) {
+    const n = path.node;
+    const T = this.types;
+    if (!T.isBlockStatement(n.body)) {
+        const bloc = n.body.loc;
+        if (n.expression === true) {
+            n.expression = false;
+        }
+        n.body = T.blockStatement([T.returnStatement(n.body)]);
+        // restore body location
+        n.body.loc = bloc;
+        // set up the location for the return statement so it gets
+        // instrumented
+        n.body.body[0].loc = bloc;
+    }
+}
+
+function coverIfBranches(path) {
+    const n = path.node;
+    const hint = this.hintFor(n);
+    const ignoreIf = hint === 'if';
+    const ignoreElse = hint === 'else';
+    const branch = this.cov.newBranch('if', n.loc);
+
+    if (ignoreIf) {
+        this.setAttr(n.consequent, 'skip-all', true);
+    } else {
+        this.insertBranchCounter(path.get('consequent'), branch, n.loc);
+    }
+    if (ignoreElse) {
+        this.setAttr(n.alternate, 'skip-all', true);
+    } else {
+        this.insertBranchCounter(path.get('alternate'), branch);
+    }
+}
+
+function createSwitchBranch(path) {
+    const b = this.cov.newBranch('switch', path.node.loc);
+    this.setAttr(path.node, 'branchName', b);
+}
+
+function coverSwitchCase(path) {
+    const T = this.types;
+    const b = this.getAttr(path.parentPath.node, 'branchName');
+    /* istanbul ignore if: paranoid check */
+    if (b === null) {
+        throw new Error('Unable to get switch branch name');
+    }
+    const increment = this.getBranchIncrement(b, path.node.loc);
+    path.node.consequent.unshift(T.expressionStatement(increment));
+}
+
+function coverTernary(path) {
+    const n = path.node;
+    const branch = this.cov.newBranch('cond-expr', path.node.loc);
+    const cHint = this.hintFor(n.consequent);
+    const aHint = this.hintFor(n.alternate);
+
+    if (cHint !== 'next') {
+        this.insertBranchCounter(path.get('consequent'), branch);
+    }
+    if (aHint !== 'next') {
+        this.insertBranchCounter(path.get('alternate'), branch);
+    }
+}
+
+function coverLogicalExpression(path) {
+    const T = this.types;
+    if (path.parentPath.node.type === 'LogicalExpression') {
+        return; // already processed
+    }
+    const leaves = [];
+    this.findLeaves(path.node, leaves);
+    const b = this.cov.newBranch(
+        'binary-expr',
+        path.node.loc,
+        this.reportLogic
+    );
+    for (let i = 0; i < leaves.length; i += 1) {
+        const leaf = leaves[i];
+        const hint = this.hintFor(leaf.node);
+        if (hint === 'next') {
+            continue;
+        }
+
+        if (this.reportLogic) {
+            const increment = this.getBranchLogicIncrement(
+                leaf,
+                b,
+                leaf.node.loc
+            );
+            if (!increment[0]) {
+                continue;
+            }
+            leaf.parent[leaf.property] = T.sequenceExpression([
+                increment[0],
+                increment[1]
+            ]);
+            continue;
+        }
+
+        const increment = this.getBranchIncrement(b, leaf.node.loc);
+        if (!increment) {
+            continue;
+        }
+        leaf.parent[leaf.property] = T.sequenceExpression([
+            increment,
+            leaf.node
+        ]);
+    }
+}
+
+const codeVisitor = {
+    ArrowFunctionExpression: entries(convertArrowExpression, coverFunction),
+    AssignmentPattern: entries(coverAssignmentPattern),
+    BlockStatement: entries(), // ignore processing only
+    ExportDefaultDeclaration: entries(), // ignore processing only
+    ExportNamedDeclaration: entries(), // ignore processing only
+    ClassMethod: entries(coverFunction),
+    ClassDeclaration: entries(parenthesizedExpressionProp('superClass')),
+    ClassProperty: entries(coverClassPropDeclarator),
+    ClassPrivateProperty: entries(coverClassPropDeclarator),
+    ObjectMethod: entries(coverFunction),
+    ExpressionStatement: entries(coverStatement),
+    BreakStatement: entries(coverStatement),
+    ContinueStatement: entries(coverStatement),
+    DebuggerStatement: entries(coverStatement),
+    ReturnStatement: entries(coverStatement),
+    ThrowStatement: entries(coverStatement),
+    TryStatement: entries(coverStatement),
+    VariableDeclaration: entries(), // ignore processing only
+    VariableDeclarator: entries(coverVariableDeclarator),
+    IfStatement: entries(
+        blockProp('consequent'),
+        blockProp('alternate'),
+        coverStatement,
+        coverIfBranches
+    ),
+    ForStatement: entries(blockProp('body'), coverStatement),
+    ForInStatement: entries(blockProp('body'), coverStatement),
+    ForOfStatement: entries(blockProp('body'), coverStatement),
+    WhileStatement: entries(blockProp('body'), coverStatement),
+    DoWhileStatement: entries(blockProp('body'), coverStatement),
+    SwitchStatement: entries(createSwitchBranch, coverStatement),
+    SwitchCase: entries(coverSwitchCase),
+    WithStatement: entries(blockProp('body'), coverStatement),
+    FunctionDeclaration: entries(coverFunction),
+    FunctionExpression: entries(coverFunction),
+    LabeledStatement: entries(coverStatement),
+    ConditionalExpression: entries(coverTernary),
+    LogicalExpression: entries(coverLogicalExpression)
+};
+const globalTemplateAlteredFunction = template(`
+        var Function = (function(){}).constructor;
+        var global = (new Function(GLOBAL_COVERAGE_SCOPE))();
+`);
+const globalTemplateFunction = template(`
+        var global = (new Function(GLOBAL_COVERAGE_SCOPE))();
+`);
+const globalTemplateVariable = template(`
+        var global = GLOBAL_COVERAGE_SCOPE;
+`);
+// the template to insert at the top of the program.
+const coverageTemplate = template(
+    `
+    function COVERAGE_FUNCTION () {
+        var path = PATH;
+        var hash = HASH;
+        GLOBAL_COVERAGE_TEMPLATE
+        var gcv = GLOBAL_COVERAGE_VAR;
+        var coverageData = INITIAL;
+        var coverage = global[gcv] || (global[gcv] = {});
+        if (!coverage[path] || coverage[path].hash !== hash) {
+            coverage[path] = coverageData;
+        }
+
+        var actualCoverage = coverage[path];
+        {
+            // @ts-ignore
+            COVERAGE_FUNCTION = function () {
+                return actualCoverage;
+            }
+        }
+
+        return actualCoverage;
+    }
+`,
+    { preserveComments: true }
+);
+// the rewire plugin (and potentially other babel middleware)
+// may cause files to be instrumented twice, see:
+// https://github.com/istanbuljs/babel-plugin-istanbul/issues/94
+// we should only instrument code for coverage the first time
+// it's run through istanbul-lib-instrument.
+function alreadyInstrumented(path, visitState) {
+    return path.scope.hasBinding(visitState.varName);
+}
+function shouldIgnoreFile(programNode) {
+    return (
+        programNode.parent &&
+        programNode.parent.comments.some(c => COMMENT_FILE_RE.test(c.value))
+    );
+}
+
+/**
+ * programVisitor is a `babel` adaptor for instrumentation.
+ * It returns an object with two methods `enter` and `exit`.
+ * These should be assigned to or called from `Program` entry and exit functions
+ * in a babel visitor.
+ * These functions do not make assumptions about the state set by Babel and thus
+ * can be used in a context other than a Babel plugin.
+ *
+ * The exit function returns an object that currently has the following keys:
+ *
+ * `fileCoverage` - the file coverage object created for the source file.
+ * `sourceMappingURL` - any source mapping URL found when processing the file.
+ *
+ * @param {Object} types - an instance of babel-types.
+ * @param {string} sourceFilePath - the path to source file.
+ * @param {Object} opts - additional options.
+ * @param {string} [opts.coverageVariable=__coverage__] the global coverage variable name.
+ * @param {boolean} [opts.reportLogic=false] report boolean value of logical expressions.
+ * @param {string} [opts.coverageGlobalScope=this] the global coverage variable scope.
+ * @param {boolean} [opts.coverageGlobalScopeFunc=true] use an evaluated function to find coverageGlobalScope.
+ * @param {Array} [opts.ignoreClassMethods=[]] names of methods to ignore by default on classes.
+ * @param {object} [opts.inputSourceMap=undefined] the input source map, that maps the uninstrumented code back to the
+ * original code.
+ */
+function programVisitor(types, sourceFilePath = 'unknown.js', opts = {}) {
+    const T = types;
+    opts = {
+        ...defaults.instrumentVisitor,
+        ...opts
+    };
+    const visitState = new VisitState(
+        types,
+        sourceFilePath,
+        opts.inputSourceMap,
+        opts.ignoreClassMethods,
+        opts.reportLogic
+    );
+    return {
+        enter(path) {
+            if (shouldIgnoreFile(path.find(p => p.isProgram()))) {
+                return;
+            }
+            if (alreadyInstrumented(path, visitState)) {
+                return;
+            }
+            path.traverse(codeVisitor, visitState);
+        },
+        exit(path) {
+            if (alreadyInstrumented(path, visitState)) {
+                return;
+            }
+            visitState.cov.freeze();
+            const coverageData = visitState.cov.toJSON();
+            if (shouldIgnoreFile(path.find(p => p.isProgram()))) {
+                return {
+                    fileCoverage: coverageData,
+                    sourceMappingURL: visitState.sourceMappingURL
+                };
+            }
+            coverageData[MAGIC_KEY] = MAGIC_VALUE;
+            const hash = createHash(SHA)
+                .update(JSON.stringify(coverageData))
+                .digest('hex');
+            coverageData.hash = hash;
+            const coverageNode = T.valueToNode(coverageData);
+            delete coverageData[MAGIC_KEY];
+            delete coverageData.hash;
+            let gvTemplate;
+            if (opts.coverageGlobalScopeFunc) {
+                if (path.scope.getBinding('Function')) {
+                    gvTemplate = globalTemplateAlteredFunction({
+                        GLOBAL_COVERAGE_SCOPE: T.stringLiteral(
+                            'return ' + opts.coverageGlobalScope
+                        )
+                    });
+                } else {
+                    gvTemplate = globalTemplateFunction({
+                        GLOBAL_COVERAGE_SCOPE: T.stringLiteral(
+                            'return ' + opts.coverageGlobalScope
+                        )
+                    });
+                }
+            } else {
+                gvTemplate = globalTemplateVariable({
+                    GLOBAL_COVERAGE_SCOPE: opts.coverageGlobalScope
+                });
+            }
+            const cv = coverageTemplate({
+                GLOBAL_COVERAGE_VAR: T.stringLiteral(opts.coverageVariable),
+                GLOBAL_COVERAGE_TEMPLATE: gvTemplate,
+                COVERAGE_FUNCTION: T.identifier(visitState.varName),
+                PATH: T.stringLiteral(sourceFilePath),
+                INITIAL: coverageNode,
+                HASH: T.stringLiteral(hash)
+            });
+            // explicitly call this.varName to ensure coverage is always initialized
+            path.node.body.unshift(
+                T.expressionStatement(
+                    T.callExpression(T.identifier(visitState.varName), [])
+                )
+            );
+            path.node.body.unshift(cv);
+            return {
+                fileCoverage: coverageData,
+                sourceMappingURL: visitState.sourceMappingURL
+            };
+        }
+    };
+}
+
+module.exports = programVisitor;