code: def add_input_data(self, datastream, data_type, options, data):
          
  
          url = self.get_add_input_data_url(datastream, options)
  
          form_data = {
              'files': {
                  'data': (
                      Utils.random_string(10)+('.json' if data_type == 'json' else '.csv'),
                      StringIO(data),
                      'text/plain;charset=UTF-8',
                      {'Expires': '0'}
                  )
              }
          }
          response = self.http.fpost(url, form_data)
          return response
docs: To add data to a Datastream
          :param datastream: string
          :param data_type: string
          :param options: dict
          :param data: string