How to use the apollo-engine-reporting-protobuf.Traces function in apollo-engine-reporting-protobuf

const protobufError = Trace.verify(trace);
    if (protobufError) {
      throw new Error(`Error encoding trace: ${protobufError}`);
    }
    const encodedTrace = Trace.encode(trace).finish();

    const signature = await this.getTraceSignature({
      queryHash,
      documentAST,
      queryString,
      operationName,
    });

    const statsReportKey = `# ${operationName || '-'}\n${signature}`;
    if (!report.tracesPerQuery.hasOwnProperty(statsReportKey)) {
      report.tracesPerQuery[statsReportKey] = new Traces();
      (report.tracesPerQuery[statsReportKey] as any).encodedTraces = [];
    }
    // See comment on our override of Traces.encode inside of
    // apollo-engine-reporting-protobuf to learn more about this strategy.
    (report.tracesPerQuery[statsReportKey] as any).encodedTraces.push(
      encodedTrace,
    );
    this.reportSizes[schemaHash] +=
      encodedTrace.length + Buffer.byteLength(statsReportKey);

    // If the buffer gets big (according to our estimate), send.
    if (
      this.sendReportsImmediately ||
      this.reportSizes[schemaHash] >=
        (this.options.maxUncompressedReportSize || 4 * 1024 * 1024)
    ) {