export declare function promiseMaybeOneOf<T>(name: string, mixed: any, arr: T[]): Promise<null | undefined | (T)>;
export declare function promiseMaybeOneOfHandler<T>(arr: T[]): (name: string, mixed: any) => Promise<null | undefined | (T)>;
export declare function promiseMaybeNotOneOf<T, NotT extends T>(name: string, mixed: any, arr: NotT[]): Promise<null | undefined | (T)>;
export declare function promiseMaybeNotOneOfHandler<T, NotT extends T>(arr: NotT[]): (name: string, mixed: any) => Promise<null | undefined | (T)>;