/** \brief Returns true if feature and/or attributes are valid.
* \param[in] theFeature the validated feature.
* \param[in] theArguments the arguments in the configuration file for this validator.
+ * \param[out] theError error message.
* \returns true if feature is valid.
*/
GEOMVALIDATORS_EXPORT virtual bool isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,