export type SourceData = string | ArrayBuffer | ArrayBufferView;
export interface Hash {
  update(toHash: SourceData, encoding?: "utf8" | "ascii" | "latin1"): void;
  digest(): Promise<Uint8Array>;
}
export interface HashConstructor {
  new (secret?: SourceData): Hash;
}
export interface StreamHasher<StreamType = any> {
  (hashCtor: HashConstructor, stream: StreamType): Promise<Uint8Array>;
}
export interface randomValues {
  (byteLength: number): Promise<Uint8Array>;
}