code: def delete_user_by_email(self, id, email):
          
          return self.client.delete(self._url(id) + '/users', params={'email': email})
docs: Deletes a specified connection user by its email.
  
          Args:
             id (str): The id of the connection (must be a database connection).
  
             email (str): The email of the user to delete.
  
          See: https://auth0.com/docs/api/management/v2#!/Connections/delete_users_by_email
  
          Returns:
              An empty dict.