@java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(jobName_)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, jobName_);
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(projectId_)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, projectId_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }
<pre>
Required. The ID of the Google Cloud project that owns the
job.
</pre>

<code>string project_id = 2 [(.google.api.field_behavior) = REQUIRED];</code>

@return The bytes for projectId.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferProto.java