Interface PrivateKeyInstance

interface PrivateKeyInstance {
    base58: string;
    bytes: ArrayBufferLike;
    hex: Lowercase<string>;
    keccak256: ArrayBufferLike;
    public: PublicKeyInstance;
    sign: (hash: ArrayBufferLike) => ArrayBufferLike | Promise<ArrayBufferLike>;
    verify: (
        msg: ArrayBufferLike,
        signature: ArrayBufferLike,
    ) => boolean | Promise<boolean>;
}