improve

Signed-off-by: Yicheng-Lu-llll <luyc58576@gmail.com>

flytekit/core/type_engine.py

@@ -985,10 +985,10 @@ def to_literal(self, ctx: FlyteContext, python_val: T, python_type: Type[T], exp
  if type(python_val) != list:
  raise TypeTransformerFailedError("Expected a list")
 
- if self.is_batchable(python_type):
+ if ListTransformer.is_batchable(python_type):
  batchSize = len(python_val) # default batch size
  # parse annotated to get the number of items saved in a pickle file.
- if get_origin(python_type) is Annotated:
+ if get_origin(python_type) is Annotated and type(get_args(python_type)[1]) == int:
  batchSize = get_args(python_type)[1]
  lit_list = [TypeEngine.to_literal(ctx, python_val[i : i + batchSize], FlytePickle, expected.collection_type) for i in range(0, len(python_val), batchSize)] # type: ignore
  else: