code: def get_datasource(self, source_id, datasource_id):
          
          target_url = self.client.get_url('DATASOURCE', 'GET', 'single', {'source_id': source_id, 'datasource_id': datasource_id})
          return self.client.get_manager(Datasource)._get(target_url)
docs: Get a Datasource object
  
          :rtype: Datasource