Apache Beam with Python 3 module module error

module 'apache_beam.coders.coders' has no attribute 'VarIntCoder'

Traceback (most recent call last):
  File "pipeline/pipeline.py", line 13, in <module>
    import apache_beam as beam
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/__init__.py", line 97, in <module>
    from apache_beam import coders
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/coders/__init__.py", line 19, in <module>
    from apache_beam.coders.coders import *
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/coders/coders.py", line 30, in <module>
    from future.moves import pickle
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/future/moves/__init__.py", line 8, in <module>
    import_top_level_modules()
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/future/standard_library/__init__.py", line 810, in import_top_level_modules
    with exclude_local_folder_imports(*TOP_LEVEL_MODULES):
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/future/standard_library/__init__.py", line 781, in __enter__
    module = __import__(m, level=0)
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/pipeline/test.py", line 14, in <module>
    from apache_beam.options.pipeline_options import PipelineOptions
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/options/pipeline_options.py", line 31, in <module>
    from apache_beam.transforms.display import HasDisplayData
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/transforms/__init__.py", line 23, in <module>
    from apache_beam.transforms import combiners
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/transforms/combiners.py", line 41, in <module>
    from apache_beam.transforms import core
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/transforms/core.py", line 38, in <module>
    from apache_beam.coders import typecoders
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/coders/typecoders.py", line 182, in <module>
    registry = CoderRegistry()
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/coders/typecoders.py", line 84, in __init__
    self.register_standard_coders(fallback_coder)
  File "/TWT/Development/machine-learning-framework/image-feature-extraction/python3/lib/python3.6/site-packages/apache_beam/coders/typecoders.py", line 88, in register_standard_coders
    self._register_coder_internal(int, coders.VarIntCoder)
AttributeError: module 'apache_beam.coders.coders' has no attribute 'VarIntCoder'