import { TransactionBuilder } from "https://deno.land/x/lucid@0.7.9/src/core/wasm_modules/cardano_multiplatform_lib_web/cardano_multiplatform_lib.js";
Add a single JSON metadatum using a TransactionMetadatumLabel, a String, and a MetadataJsonSchema object It will be securely added to existing or new metadata in this builder