code: def add_item(self, api_token, content, **kwargs):
          
          params = {
              'token': api_token,
              'content': content
          }
          return self._post('add_item', params, **kwargs)
docs: Add a task to a project.
  
          :param token: The user's login token.
          :type token: str
          :param content: The task description.
          :type content: str
          :param project_id: The project to add the task to. Default is ``Inbox``
          :type project_id: str
          :param date_string: The deadline date for the task.
          :type date_string: str
          :param priority: The task priority ``(1-4)``.
          :type priority: int
          :param indent: The task indentation ``(1-4)``.
          :type indent: int
          :param item_order: The task order.
          :type item_order: int
          :param children: A list of child tasks IDs.
          :type children: str
          :param labels: A list of label IDs.
          :type labels: str
          :param assigned_by_uid: The ID of the user who assigns current task.
              Accepts 0 or any user id from the list of project collaborators.
              If value is unset or invalid it will automatically be set up by
              your uid.
          :type assigned_by_uid: str
          :param responsible_uid: The id of user who is responsible for
              accomplishing the current task. Accepts 0 or any user id from
              the list of project collaborators. If the value is unset or
              invalid it will automatically be set to null.
          :type responsible_uid: str
          :param note: Content of a note to add.
          :type note: str
          :return: The HTTP response to the request.
          :rtype: :class:`requests.Response`
  
          >>> from pytodoist.api import TodoistAPI
          >>> api = TodoistAPI()
          >>> response = api.login('john.doe@gmail.com', 'password')
          >>> user_info = response.json()
          >>> user_api_token = user_info['token']
          >>> response = api.add_item(user_api_token, 'Install PyTodoist')
          >>> task = response.json()
          >>> print(task['content'])
          Install PyTodoist