123456789101112131415161718
import type { Atom, PrimitiveAtom, WritableAtom } from './atom'
export type Getter = Parameters<Atom<unknown>['read']>[0]export type Setter = Parameters<WritableAtom<unknown, unknown>['write']>[1]
export type ExtractAtomValue<AtomType> = AtomType extends Atom<infer Value>  ? Value  : never
export type ExtractAtomUpdate<AtomType> = AtomType extends WritableAtom<  unknown,  infer Update>  ? Update  : never
export type SetStateAction<Value> = ExtractAtomUpdate<PrimitiveAtom<Value>>