* babel-types is* type checks accept null | undefiend as value TS type * Use | null | undefined instead of any, make Flow type nullable * Also change flow types of generated src
@babel/types
Babel Types is a Lodash-esque utility library for AST nodes
See our website @babel/types for more information or the issues associated with this package.
Install
Using npm:
npm install --save-dev @babel/types
or using yarn:
yarn add @babel/types --dev