import { Keys } from './Keys';
/**
 * Get the known keys of an [[Object]]
 * @param O
 * @returns [[Key]]
 * @example
 * ```ts
 * ```
 */
export declare type KnownKeys<O extends object> = {
    [K in keyof O]: string extends K ? never : number extends K ? never : K;
} extends {
    [K in keyof O]: infer U;
} ? U & Keys<O> : never;