function jsonEncryptimport { jsonEncrypt } from "https://deno.land/x/polkadot@0.2.42/util-crypto/json/index.ts"; jsonEncrypt(data: Uint8Array,contentType: string[],passphrase?: string | null,): EncryptedJsonParametersdata: Uint8ArraycontentType: string[]optionalpassphrase: string | nullReturnsEncryptedJson