https://flow.org/try/#0PQKgBAAgZgNg9gdzCYAoVBTAHgBzgJwBcxCBPHDMAUS0PwEMBjQgJQ0IFd8A7AHgDFuAPjABeMABIAwvRgxevACpCAFCoB0mgJKEMDAEYwMvet1JCAlGJGKromwBowgoQG50qRnG4BnYgFt6HABlQnpdRTgABXw4HB8xMD9wynswFQBvVDAwKFj-AEFuOEIACz0CnBwALiSw3XUgnHU8uELisoqqh1QAXwt3VDIKMDYAEw4sGLiE8Ro6JlZ2Lj5hjDgoMECQ+oxI6fi3DygObmYAS28wAFlSKTa8bgxuQhUcWPja8cmDnyssnJeXzEDK5fJF…

ExtractReturn.js

/* @flow */

export type ExtractReturn<Fn> = $Call<<T>((...Iterable<any>) => T) => T, Fn>;


const mapStateToProps = state => ({
  fromAnotherApp: state.app.fromAnotherApp,
});

type ReduxProps = ExtractReturn<typeof mapStateToProps>;


function MyComponent(props: ReduxProps) {
  const { fromAnotherApp } = props;
}