[GitHub] [beam] chadrik commented on a change in pull request #11632: [BEAM-7746] Fix type errors and enable checks for apache_beam.dataframe.*

[GitBox <gi...@apache.org>]

chadrik commented on a change in pull request #11632:
URL: https://github.com/apache/beam/pull/11632#discussion_r422273845



##########
File path: sdks/python/apache_beam/dataframe/convert.py
##########
@@ -16,13 +16,23 @@
 
 from __future__ import absolute_import
 
+import typing
+
 import inspect
 
 from apache_beam import pvalue
 from apache_beam.dataframe import expressions
 from apache_beam.dataframe import frame_base
 from apache_beam.dataframe import transforms
 
+if typing.TYPE_CHECKING:
+  # pylint: disable=ungrouped-imports
+  from typing import Any
+  from typing import Dict
+  from typing import Tuple
+  from typing import Union

Review comment:
       What's the lint error?   Is it because of the unused `typing` import?  
   
   I'm confused because unguarded typing imports are used all over the beam codebase without any lint errors.  Check `pipeline`, `pipeline_context`, `pipeline_options`, for starters. 
   




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