code: def get_tasks(client, list_id, completed=False):
      ''' Gets un/completed tasks for the given list ID '''
      params = { 
              'list_id' : str(list_id), 
              'completed' : completed 
              }
      response = client.authenticated_request(client.api.Endpoints.TASKS, params=params)
      return response.json(f get_tasks(client, list_id, completed=False):
      ''' Gets un/completed tasks for the given list ID '''
      params = { 
              'list_id' : str(list_id), 
              'completed' : completed 
              }
      response = client.authenticated_request(client.api.Endpoints.TASKS, params=params)
      return response.json()
docs: Gets un/completed tasks for the given list ID