function jsonEncryptimport { jsonEncrypt } from "https://dotland.deno.dev/x/polkadot@0.2.45/util-crypto/index.ts"; jsonEncrypt(data: Uint8Array,contentType: string[],passphrase?: string | null,): EncryptedJsonParametersdata: Uint8ArraycontentType: string[]optionalpassphrase: string | nullReturnsEncryptedJson