code: def register_remove_user_command(self, remove_user_func):
          
          description = "Removes user permission to access a remote project."
          remove_user_parser = self.subparsers.add_parser('remove-user', description=description)
          add_project_name_or_id_arg(remove_user_parser, help_text_suffix="remove a user from")
          user_or_email = remove_user_parser.add_mutually_exclusive_group(required=True)
          add_user_arg(user_or_email)
          add_email_arg(user_or_email)
          remove_user_parser.set_defaults(func=remove_user_func)
docs: Add the remove-user command to the parser and call remove_user_func(project_name, user_full_name) when chosen.
          :param remove_user_func: func Called when this option is chosen: remove_user_func(project_name, user_full_name).