graphviz = {
const PKG = '@hpcc-js/wasm@0.2.0';
const base = await require.resolve(`${PKG}/dist/.`);
const script = await fetch(`${base}/worker.min.js`).then(res => res.text());
const blob = new Blob([script], {type: 'application/javascript'});
const worker = `${URL.createObjectURL(blob)}#`;
const wasmFolder = new String(base);
wasmFolder.valueOf = () => worker;
const hpccWasm = await require(PKG);
hpccWasm.wasmFolder(wasmFolder);
return hpccWasm.graphviz;
}