public Builder setEndTime(com.google.protobuf.Timestamp.Builder builderForValue) {
        if (endTimeBuilder_ == null) {
          endTime_ = builderForValue.build();
        } else {
          endTimeBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
<pre>
End time of the partition.
</pre>

<code>.google.protobuf.Timestamp end_time = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Partition.java