code: def CreateGrrUser(self, username=None, user_type=None, password=None):
      
  
      if not username:
        raise ValueError("Username can't be empty.")
  
      args = user_management_pb2.ApiCreateGrrUserArgs(username=username)
  
      if user_type is not None:
        args.user_type = user_type
  
      if password is not None:
        args.password = password
  
      data = self._context.SendRequest("CreateGrrUser", args)
      return GrrUser(data=data, context=self._context)
docs: Creates a new GRR user of a given type with a given username/password.