code: def clear_genus_type(self):
          
          if (self.get_genus_type_metadata().is_read_only() or
                  self.get_genus_type_metadata().is_required()):
              raise errors.NoAccess()
          self._my_map['genusTypeId'] = self._genus_type_default
docs: Clears the genus type.
  
          raise:  NoAccess - ``Metadata.isRequired()`` or
                  ``Metadata.isReadOnly()`` is ``true``
          *compliance: mandatory -- This method must be implemented.*