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How do you create a gzip njson file in memory for BucketObject in GCS?
```var jsonAsset = new pulumi.asset.StringAsset(`{"msg":"hello world"}\n`);

    this.jsonGZipFile = new gcp.storage.BucketObject(
      'myfolder/json-template.log.gz',
      {
        name: 'myfolder/json-template.log.gz',
        bucket: pulumi.interpolate`${args.bucket}`,
        contentType: 'application/x-ndjson',
        contentEncoding: 'gzip',
        source: jsonAsset,
      }
    );```
File is created, but its an empty zip file.

Only way i could get it to work was to create the gzip file on disk and use the `source` property on the BuckObject.
I had hoped to keep it in memory.  I used these functions and used `fs.write` to create a valid ndjson gzip file.
```createNDJSONBuffer(data: any[]): Buffer {
    const ndjsonData = data.map(item =&gt; JSON.stringify(item)).join('\n');
    return Buffer.from(ndjsonData);
  }

  compressToGzipBuffer(inputBuffer: Buffer): Promise&lt;Buffer&gt; {
    return new Promise((resolve, reject) =&gt; {
      zlib.gzip(inputBuffer, (err, result) =&gt; {
        if (err) {
          reject(err);
        } else {
          resolve(result);
        }
      });
    });
  }```