code: public final Trace getTrace(String projectId, String traceId) {
  
      GetTraceRequest request =
          GetTraceRequest.newBuilder().setProjectId(projectId).setTraceId(traceId).build();
      return getTrace(request);
    }
docs: Gets a single trace by its ID.
  
  <p>Sample code:
  
  <pre><code>
  try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
  String projectId = "";
  String traceId = "";
  Trace response = traceServiceClient.getTrace(projectId, traceId);
  }
  </code></pre>
  
  @param projectId ID of the Cloud project where the trace data is stored.
  @param traceId ID of the trace to return.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails