@java.lang.Override
  public com.google.type.DateTime getDatetimeValue() {
    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>

@return The datetimeValue.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/FacetValue.java