public Builder setDatetimeValue(com.google.type.DateTime.Builder builderForValue) {
      if (datetimeValueBuilder_ == null) {
        value_ = builderForValue.build();
        onChanged();
      } else {
        datetimeValueBuilder_.setMessage(builderForValue.build());
      }
      valueCase_ = 3;
      return this;
    }
<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