import type { wrap_aa_item_T } from '../wrap_aa_item/index.js'
export declare function union_by_<
	I extends unknown, O extends unknown
>(
	aa_nowrap:I,
	by_?:(v:wrap_aa_item_T<I>)=>O
):wrap_aa_item_T<I>[]
export {
	union_by_ as _union_by,
	union_by_ as _union__by,
}