private com.google.protobuf.SingleFieldBuilderV3<
            com.google.type.DateTime,
            com.google.type.DateTime.Builder,
            com.google.type.DateTimeOrBuilder>
        getEndFieldBuilder() {
      if (endBuilder_ == null) {
        endBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.type.DateTime,
                com.google.type.DateTime.Builder,
                com.google.type.DateTimeOrBuilder>(getEnd(), getParentForChildren(), isClean());
        end_ = null;
      }
      return endBuilder_;
    }
<pre>
End data time.
</pre>

<code>.google.type.DateTime end = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/DateTimeRange.java