@java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(step_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, step_);
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(routine_)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, routine_);
      }
      if (((bitField0_ & 0x00000001) != 0)) {
        output.writeMessage(3, getPosition());
      }
      getUnknownFields().writeTo(output);
    }
<pre>
The source position information of the stack trace element.
</pre>

<code>
.google.cloud.workflows.executions.v1.Execution.StackTraceElement.Position position = 3;
</code>
java-workflow-executions/proto-google-cloud-workflow-executions-v1/src/main/java/com/google/cloud/workflows/executions/v1/Execution.java