declare type Awaited<T> = T extends Promise<infer V> ? Awaited<V> : T;
declare type Getter = {
    <Value>(atom: Atom<Value | Promise<Value>>): Value;
    <Value>(atom: Atom<Promise<Value>>): Value;
    <Value>(atom: Atom<Value>): Awaited<Value>;
};
declare type WriteGetter = Getter & {
    <Value>(atom: Atom<Value | Promise<Value>>, options: {
        unstable_promise: true;
    }): Promise<Value> | Value;
    <Value>(atom: Atom<Promise<Value>>, options: {
        unstable_promise: true;
    }): Promise<Value> | Value;
    <Value>(atom: Atom<Value>, options: {
        unstable_promise: true;
    }): Promise<Awaited<Value>> | Awaited<Value>;
};
declare type Setter = {
    <Value, Result extends void | Promise<void>>(atom: WritableAtom<Value, undefined, Result>): Result;
    <Value, Update, Result extends void | Promise<void>>(atom: WritableAtom<Value, Update, Result>, update: Update): Result;
};
declare type Read<Value> = (get: Getter) => Value;
declare type Write<Update, Result extends void | Promise<void>> = (get: WriteGetter, set: Setter, update: Update) => Result;
declare type WithInitialValue<Value> = {
    init: Value;
};
export declare type Scope = symbol | string | number;
export declare type SetAtom<Update, Result extends void | Promise<void>> = undefined extends Update ? (update?: Update) => Result : (update: Update) => Result;
declare type OnUnmount = () => void;
declare type OnMount<Update, Result extends void | Promise<void>> = <S extends SetAtom<Update, Result>>(setAtom: S) => OnUnmount | void;
export interface Atom<Value> {
    toString: () => string;
    debugLabel?: string;
    read: Read<Value>;
}
export interface WritableAtom<Value, Update, Result extends void | Promise<void> = void> extends Atom<Value> {
    write: Write<Update, Result>;
    onMount?: OnMount<Update, Result>;
}
declare type SetStateAction<Value> = Value | ((prev: Value) => Value);
export declare type PrimitiveAtom<Value> = WritableAtom<Value, SetStateAction<Value>>;
export declare function atom<Value, Update, Result extends void | Promise<void> = void>(read: Read<Value>, write: Write<Update, Result>): WritableAtom<Value, Update, Result>;
export declare function atom<Value>(read: Read<Value>): Atom<Value>;
export declare function atom(invalidFunction: (...args: any) => any, write?: any): never;
export declare function atom<Value, Update, Result extends void | Promise<void> = void>(initialValue: Value, write: Write<Update, Result>): WritableAtom<Value, Update, Result> & WithInitialValue<Value>;
export declare function atom<Value>(initialValue: Value): PrimitiveAtom<Value> & WithInitialValue<Value>;
export {};