@java.lang.Override
  public boolean hasTraces() {
    return ((bitField0_ & 0x00000001) != 0);
  }
<pre>
Required. The body of the message.
</pre>

<code>
.google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
</code>

@return Whether the traces field is set.
java-trace/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequest.java