function hmacimport { hmac } from "https://deno.land/x/dynamodb@v1.0.0/deps.ts"; hmac(hash: string,key: string | Uint8Array,msg?: string | Uint8Array,inputEncoding?: string,outputEncoding?: string,): string | Uint8ArrayReturns a HMAC of the given msg and key using the indicated hash. Parametershash: stringkey: string | Uint8Arrayoptionalmsg: string | Uint8ArrayoptionalinputEncoding: stringoptionaloutputEncoding: stringReturnsstring | Uint8Array