/// Returns true if feature and/or attributes are valid
/// \param theFeature the validated feature
/// \param theArguments the arguments in the configuration file for this validator
+ /// \param theError erros message produced by validator to the user if it fails
/// \returns true if feature is valid
MODEL_EXPORT virtual bool isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,
const std::list<std::string>& theArguments,