code: def generate_batch(cls, strategy, size, **kwargs):
          
          assert strategy in (enums.STUB_STRATEGY, enums.BUILD_STRATEGY, enums.CREATE_STRATEGY)
          batch_action = getattr(cls, '%s_batch' % strategy)
          return batch_action(size, **kwargs)
docs: Generate a batch of instances.
  
          The instances will be created with the given strategy (one of
          BUILD_STRATEGY, CREATE_STRATEGY, STUB_STRATEGY).
  
          Args:
              strategy (str): the strategy to use for generating the instance.
              size (int): the number of instances to generate
  
          Returns:
              object list: the generated instances