docs: def delete_proficiency(self, proficiency_id):
          """Deletes a ``Proficiency``.
  
          arg:    proficiency_id (osid.id.Id): the ``Id`` of the
                  ``Proficiency`` to remove
          raise:  NotFound - ``proficiency_id`` not found
          raise:  NullArgument - ``proficiency_id`` is ``null``
          raise:  OperationFailed - unable to complete request
          raise:  PermissionDenied - authorization failure
          *compliance: mandatory -- This method must be implemented.*
  
          """
          # Implemented from template for
          # osid.resource.ResourceAdminSession.delete_resource_template
          collection = JSONClientValidated('learning',
                                           collection='Proficiency',
                                           runtime=self._runtime)
          if not isinstance(proficiency_id, ABCId):
              raise errors.InvalidArgument('the argument is not a valid OSID Id')
          proficiency_map = collection.find_one(
              dict({'_id': ObjectId(proficiency_id.get_identifier())},
                   **self._view_filter()))
  
          objects.Proficiency(osid_object_map=proficiency_map, runtime=self._runtime, proxy=self._proxy)._delete()
          collection.delete_one({'_id': ObjectId(proficiency_id.get_identifier())})