Can't bind the apply function

[marcusdarmstrong]

Hi there! I've been trying to get rid of a $FlowFixMe in our codebase and have isolated it down to this:

https://flow.org/try/#0PTAEAEDMBsHsHcBQiCmAPADrATgF1ACYqQCGArtPgBSQBcoAYmQHYDGuAlrMwJSgC8APlCQAdCQwZoAT1EAjDswI0eAbkRA

That is,

// @flow

export default (f: Function) => f.apply.bind(f);

yields

3: export default (f: Function) => f.apply.bind(f);
                                   ^ call of method `bind`. Callable signature not found in
3: export default (f: Function) => f.apply.bind(f);
                                   ^ function type

Even though...

const foo = () => console.log('Works');
const bar = f => f.apply.bind(f);
bar(foo)(); // Works

[oriSomething]

From curiosity, why binding apply?

[marcusdarmstrong]

Not my code so I can't be 100% sure, but I think it might have just been so that we could use an args array.

[SamChou19815]

This now works