code: def _add(app, endpoint, payload):
      '''
      POST a payload
      '''
      nb = _nb_obj(auth_required=True)
      try:
          return getattr(getattr(nb, app), endpoint).create(**payload)
      except RequestError as e:
          log.error('%s, %s, %s', e.req.request.headers, e.request_body, e.error)
          return Falsf _add(app, endpoint, payload):
      '''
      POST a payload
      '''
      nb = _nb_obj(auth_required=True)
      try:
          return getattr(getattr(nb, app), endpoint).create(**payload)
      except RequestError as e:
          log.error('%s, %s, %s', e.req.request.headers, e.request_body, e.error)
          return False
docs: POST a payload