Blake2bOperation
import { Blake2bOperation } from "https://raw.githubusercontent.com/marigold-dev/tzstamp/0.3.4/proof/mod.ts";
BLAKE2b hash operation
class Blake2bOperation extends Operation { }
constructor(length?, key?: Uint8Array);
readonly key?: Uint8Array;
readonly length?: number;
commit(input: Uint8Array): Uint8Array;
toJSON(): Blake2bTemplate;
toString(): string;