function utilCrypto.sr25519Agreementimport { utilCrypto } from "https://dotland.deno.dev/x/polkadot@0.2.45/mod.ts"; const { sr25519Agreement } = utilCrypto; sr25519Agreement(secretKey: string | Uint8Array, publicKey: string | Uint8Array): Uint8ArrayParameterssecretKey: string | Uint8ArraypublicKey: string | Uint8ArrayReturnsUint8Array