code: def enable(self, identifier, exclude_children=False):
          
          import_path = self._identifier2import_path(identifier=identifier)
          if import_path in self._disabled:
              self._enable_path(import_path)
              self._disabled.remove(import_path)
          if not exclude_children and import_path in self._children_disabled:
              self._children_disabled.remove(import_path)
              self._write_child_disabled()
docs: Enable a previously disabled include type
  
          :param identifier: module or name of the include type
          :param exclude_children: disable the include type only for child processes, not the current process
  
          The ``identifier`` can be specified in multiple ways to disable an include type.
          See :py:meth:`~.DisabledIncludeTypes.disable` for details.