export type PickOptional<T> = Pick<T, {
    [K in keyof T]-?: {} extends {
        [P in K]: T[K];
    } ? K : never;
}[keyof T]>;
export type StringKey<T extends object> = {
    [P in keyof T]: T[P] extends string ? P : never;
}[keyof T] & string;
export interface ControlledFormValue<T> {
    value: T;
    onChange: (value: T) => void;
}