----> 1 from google.cloud import documentai_v1beta3

/usr/local/lib/python3.8/dist-packages/google/cloud/documentai_v1beta3/__init__.py in <module>
     16 #
     17 
---> 18 from .services.document_processor_service import DocumentProcessorServiceClient
     19 from .types.document import Document
     20 from .types.document_processor_service import BatchProcessMetadata

/usr/local/lib/python3.8/dist-packages/google/cloud/documentai_v1beta3/services/document_processor_service/__init__.py in <module>
     16 #
     17 
---> 18 from .client import DocumentProcessorServiceClient
     19 from .async_client import DocumentProcessorServiceAsyncClient
     20 

/usr/local/lib/python3.8/dist-packages/google/cloud/documentai_v1beta3/services/document_processor_service/client.py in <module>
     25 from google.api_core import client_options as client_options_lib  # type: ignore
     26 from google.api_core import exceptions  # type: ignore
---> 27 from google.api_core import gapic_v1  # type: ignore
     28 from google.api_core import retry as retries  # type: ignore
     29 from google.auth import credentials  # type: ignore

/usr/local/lib/python3.8/dist-packages/google/api_core/gapic_v1/__init__.py in <module>
     24 if sys.version_info >= (3, 6):
     25     from google.api_core.gapic_v1 import config_async  # noqa: F401
---> 26     from google.api_core.gapic_v1 import method_async  # noqa: F401
     27     __all__.append("config_async")
     28     __all__.append("method_async")

/usr/local/lib/python3.8/dist-packages/google/api_core/gapic_v1/method_async.py in <module>
     18 """
     19 
---> 20 from google.api_core import general_helpers, grpc_helpers_async
     21 from google.api_core.gapic_v1 import client_info
     22 from google.api_core.gapic_v1.method import (_GapicCallable,  # noqa: F401

/usr/local/lib/python3.8/dist-packages/google/api_core/grpc_helpers_async.py in <module>
    143 
    144 
--> 145 class _WrappedStreamUnaryCall(_WrappedUnaryResponseMixin, _WrappedStreamRequestMixin, aio.StreamUnaryCall):
    146     """Wrapped StreamUnaryCall to map exceptions."""
    147 

AttributeError: module 'grpc.experimental.aio' has no attribute 'StreamUnaryCall'
> /usr/local/lib/python3.8/dist-packages/google/api_core/grpc_helpers_async.py(145)<module>()
    143 
    144 
--> 145 class _WrappedStreamUnaryCall(_WrappedUnaryResponseMixin, _WrappedStreamRequestMixin, aio.StreamUnaryCall):
    146     """Wrapped StreamUnaryCall to map exceptions."""
    147