---
name: "Library Definitions"
about: You want to report an issue with Flow's library definitions.
labels: "Library definitions"
---

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Please note that Flow only bundles library definitions for core JS data structures like `Array`, `Map` and `Set`.
Most of the library definitions are maintained in https://github.com/flow-typed/flow-typed, and issues should be reported over there.
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Explain what APIs are not modeled by Flow or could be improved
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## Missing/Incorrect APIs

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Please include documentation for the missing APIs.
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## Relevant documentation
