code: def get_user(self, user_id, depth=1):
          
          response = self._perform_request(
              '/um/users/%s?depth=%s' % (user_id, str(depth)))
  
          return response
docs: Retrieves a single user by ID.
  
          :param      user_id: The unique ID of the user.
          :type       user_id: ``str``
  
          :param      depth: The depth of the response data.
          :type       depth: ``int``