@java.lang.Override
    public com.google.type.DateTimeOrBuilder getDatetimeValueOrBuilder() {
      if ((valueCase_ == 3) && (datetimeValueBuilder_ != null)) {
        return datetimeValueBuilder_.getMessageOrBuilder();
      } else {
        if (valueCase_ == 3) {
          return (com.google.type.DateTime) value_;
        }
        return com.google.type.DateTime.getDefaultInstance();
      }
    }
<pre>
Datetime type value.
</pre>

<code>.google.type.DateTime datetime_value = 3;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/FacetValue.java