code: def user_parse(data):
          
          resp = data.get('response', [{}])[0]
          yield 'id', resp.get('uid')
          yield 'first_name', resp.get('first_name')
          yield 'last_name', resp.get('last_name')
          yield 'username', resp.get('nickname')
          yield 'city', resp.get('city')
          yield 'country', resp.get('country')
          yield 'picture', resp.get('photo_big')
docs: Parse information from provider.