Trouble exporting generic curried functions

problem.js

// I have a library of helper functions that I want to export curried versions of

// A minimal chunk of it looks like this:

// stole this type signature from a PR discussion: thanks!
export function curry2<A,B,C>(f: (x: A, y: B) => C): (x: A) => (y: B) => C {
  return (a) => (b) => f(a, b)
}

function _push<A>(item: A, items: Array<A>): Array<A> {
  return items.concat(item)
}

export const push = curry2(push)

// But that doesn't work. Flow complains expression `curry2(push)`, saying:
//
// - type parameter 'A' of function call. Missing annotation.
// - type parameter 'B' of function call. Missing annotation.

// Possible solution #1: annotate the type of `push`
export const push<A>: (item: A) => (items: Array<A>) => Array<A>

// But this doesn't work because const expressions can't introduce generic type variables.

// Possible solution #2: export a wrapper function?
export function push<A> (item: A): (items: Array<A>) => Array<A> {
  return curry2(_push)(item);
}

// But at that point I'm basically re-writing most of `curry` myself for every function I export.
// Is there a better way?