import React from 'react';

type KeyOf<O> = O extends unknown ? keyof O : never;
type KeysOf<O> = O extends unknown ? {
    [Key in KeyOf<O>]: Key;
}[KeyOf<O>][] : never;
type EntryOf<O> = EntriesOf<O>[number];
type EntriesOf<O> = O extends unknown ? {
    [Key in KeyOf<O>]: [Key, O[Key]];
}[KeyOf<O>][] : never;
type ValueOf<O> = O extends unknown ? O[KeyOf<O>] : never;
type ValuesOf<O> = O extends unknown ? {
    [Key in KeyOf<O>]: O[Key];
}[KeyOf<O>][] : never;
type AnyFunction = (...args: any[]) => any;
type Prettify<O> = O extends any ? O extends Record<PropertyKey, any> ? {
    [K in keyof O]: O[K];
} & {} : O : never;
type MaybeRef<T> = T | React.MutableRefObject<T>;
type MaybePromise<T> = T | Promise<T>;
type Defined<T> = T extends undefined ? never : T;
type Falsy = null | undefined | false | 0 | '';

export type { AnyFunction, Defined, EntriesOf, EntryOf, Falsy, KeyOf, KeysOf, MaybePromise, MaybeRef, Prettify, ValueOf, ValuesOf };