http://git-wip-us.apache.org/repos/asf/beam/blob/c2e85daa/sdks/python/apache_beam/runners/api/beam_fn_api_pb2.py
----------------------------------------------------------------------
diff --git a/sdks/python/apache_beam/runners/api/beam_fn_api_pb2.py 
b/sdks/python/apache_beam/runners/api/beam_fn_api_pb2.py
deleted file mode 100644
index cb0b72b..0000000
--- a/sdks/python/apache_beam/runners/api/beam_fn_api_pb2.py
+++ /dev/null
@@ -1,2742 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-# Generated by the protocol buffer compiler.  DO NOT EDIT!
-# source: beam_fn_api.proto
-
-import sys
-_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
-from google.protobuf import descriptor as _descriptor
-from google.protobuf import message as _message
-from google.protobuf import reflection as _reflection
-from google.protobuf import symbol_database as _symbol_database
-from google.protobuf import descriptor_pb2
-# @@protoc_insertion_point(imports)
-
-_sym_db = _symbol_database.Default()
-
-
-from google.protobuf import any_pb2 as google_dot_protobuf_dot_any__pb2
-from google.protobuf import timestamp_pb2 as 
google_dot_protobuf_dot_timestamp__pb2
-
-# This module is experimental. No backwards-compatibility guarantees.
-
-
-DESCRIPTOR = _descriptor.FileDescriptor(
-  name='beam_fn_api.proto',
-  package='org.apache.beam.fn.v1',
-  syntax='proto3',
-  
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-  ,
-  
dependencies=[google_dot_protobuf_dot_any__pb2.DESCRIPTOR,google_dot_protobuf_dot_timestamp__pb2.DESCRIPTOR,])
-_sym_db.RegisterFileDescriptor(DESCRIPTOR)
-
-
-
-_LOGENTRY_SEVERITY = _descriptor.EnumDescriptor(
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-_sym_db.RegisterEnumDescriptor(_LOGENTRY_SEVERITY)
-
-
-_TARGET_LIST = _descriptor.Descriptor(
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-_TARGET = _descriptor.Descriptor(
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-)
-
-_PRIMITIVETRANSFORM_SIDEINPUTSENTRY = _descriptor.Descriptor(
-  name='SideInputsEntry',
-  full_name='org.apache.beam.fn.v1.PrimitiveTransform.SideInputsEntry',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='key', 
full_name='org.apache.beam.fn.v1.PrimitiveTransform.SideInputsEntry.key', 
index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='value', 
full_name='org.apache.beam.fn.v1.PrimitiveTransform.SideInputsEntry.value', 
index=1,
-      number=2, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=_descriptor._ParseOptions(descriptor_pb2.MessageOptions(), 
_b('8\001')),
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=767,
-  serialized_end=850,
-)
-
-_PRIMITIVETRANSFORM = _descriptor.Descriptor(
-  name='PrimitiveTransform',
-  full_name='org.apache.beam.fn.v1.PrimitiveTransform',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='id', full_name='org.apache.beam.fn.v1.PrimitiveTransform.id', 
index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='function_spec', 
full_name='org.apache.beam.fn.v1.PrimitiveTransform.function_spec', index=1,
-      number=2, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='inputs', 
full_name='org.apache.beam.fn.v1.PrimitiveTransform.inputs', index=2,
-      number=3, type=11, cpp_type=10, label=3,
-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='outputs', 
full_name='org.apache.beam.fn.v1.PrimitiveTransform.outputs', index=3,
-      number=4, type=11, cpp_type=10, label=3,
-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='side_inputs', 
full_name='org.apache.beam.fn.v1.PrimitiveTransform.side_inputs', index=4,
-      number=5, type=11, cpp_type=10, label=3,
-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='step_name', 
full_name='org.apache.beam.fn.v1.PrimitiveTransform.step_name', index=5,
-      number=6, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[_PRIMITIVETRANSFORM_INPUTSENTRY, 
_PRIMITIVETRANSFORM_OUTPUTSENTRY, _PRIMITIVETRANSFORM_SIDEINPUTSENTRY, ],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=263,
-  serialized_end=850,
-)
-
-
-_FUNCTIONSPEC = _descriptor.Descriptor(
-  name='FunctionSpec',
-  full_name='org.apache.beam.fn.v1.FunctionSpec',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='id', full_name='org.apache.beam.fn.v1.FunctionSpec.id', index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='urn', full_name='org.apache.beam.fn.v1.FunctionSpec.urn', index=1,
-      number=2, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='environment_reference', 
full_name='org.apache.beam.fn.v1.FunctionSpec.environment_reference', index=2,
-      number=3, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='data', full_name='org.apache.beam.fn.v1.FunctionSpec.data', 
index=3,
-      number=4, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
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-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=852,
-  serialized_end=958,
-)
-
-
-_SIDEINPUT = _descriptor.Descriptor(
-  name='SideInput',
-  full_name='org.apache.beam.fn.v1.SideInput',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='input', full_name='org.apache.beam.fn.v1.SideInput.input', index=0,
-      number=1, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='view_fn', full_name='org.apache.beam.fn.v1.SideInput.view_fn', 
index=1,
-      number=2, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
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-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
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-  serialized_start=960,
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-)
-
-
-_CODER = _descriptor.Descriptor(
-  name='Coder',
-  full_name='org.apache.beam.fn.v1.Coder',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='function_spec', 
full_name='org.apache.beam.fn.v1.Coder.function_spec', index=0,
-      number=1, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='component_coder_reference', 
full_name='org.apache.beam.fn.v1.Coder.component_coder_reference', index=1,
-      number=2, type=9, cpp_type=9, label=3,
-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=1073,
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-)
-
-
-_REMOTEGRPCPORT = _descriptor.Descriptor(
-  name='RemoteGrpcPort',
-  full_name='org.apache.beam.fn.v1.RemoteGrpcPort',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='api_service_descriptor', 
full_name='org.apache.beam.fn.v1.RemoteGrpcPort.api_service_descriptor', 
index=0,
-      number=1, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=1177,
-  serialized_end=1270,
-)
-
-
-_INSTRUCTIONREQUEST = _descriptor.Descriptor(
-  name='InstructionRequest',
-  full_name='org.apache.beam.fn.v1.InstructionRequest',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='instruction_id', 
full_name='org.apache.beam.fn.v1.InstructionRequest.instruction_id', index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='register', 
full_name='org.apache.beam.fn.v1.InstructionRequest.register', index=1,
-      number=1000, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='process_bundle', 
full_name='org.apache.beam.fn.v1.InstructionRequest.process_bundle', index=2,
-      number=1001, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='process_bundle_progress', 
full_name='org.apache.beam.fn.v1.InstructionRequest.process_bundle_progress', 
index=3,
-      number=1002, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='process_bundle_split', 
full_name='org.apache.beam.fn.v1.InstructionRequest.process_bundle_split', 
index=4,
-      number=1003, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-    _descriptor.OneofDescriptor(
-      name='request', 
full_name='org.apache.beam.fn.v1.InstructionRequest.request',
-      index=0, containing_type=None, fields=[]),
-  ],
-  serialized_start=1273,
-  serialized_end=1633,
-)
-
-
-_INSTRUCTIONRESPONSE = _descriptor.Descriptor(
-  name='InstructionResponse',
-  full_name='org.apache.beam.fn.v1.InstructionResponse',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='instruction_id', 
full_name='org.apache.beam.fn.v1.InstructionResponse.instruction_id', index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='error', 
full_name='org.apache.beam.fn.v1.InstructionResponse.error', index=1,
-      number=2, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='register', 
full_name='org.apache.beam.fn.v1.InstructionResponse.register', index=2,
-      number=1000, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
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full_name='org.apache.beam.fn.v1.InstructionResponse.process_bundle', index=3,
-      number=1001, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
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full_name='org.apache.beam.fn.v1.InstructionResponse.process_bundle_progress', 
index=4,
-      number=1002, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
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full_name='org.apache.beam.fn.v1.InstructionResponse.process_bundle_split', 
index=5,
-      number=1003, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
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-      options=None),
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-  options=None,
-  is_extendable=False,
-  syntax='proto3',
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full_name='org.apache.beam.fn.v1.InstructionResponse.response',
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-  serialized_start=1636,
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-)
-
-
-_REGISTERREQUEST = _descriptor.Descriptor(
-  name='RegisterRequest',
-  full_name='org.apache.beam.fn.v1.RegisterRequest',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
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full_name='org.apache.beam.fn.v1.RegisterRequest.process_bundle_descriptor', 
index=0,
-      number=1, type=11, cpp_type=10, label=3,
-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
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-      options=None),
-  ],
-  extensions=[
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-  nested_types=[],
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-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=2019,
-  serialized_end=2119,
-)
-
-
-_REGISTERRESPONSE = _descriptor.Descriptor(
-  name='RegisterResponse',
-  full_name='org.apache.beam.fn.v1.RegisterResponse',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
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-  extensions=[
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-  nested_types=[],
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-  options=None,
-  is_extendable=False,
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-  oneofs=[
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-  serialized_start=2121,
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-)
-
-
-_PROCESSBUNDLEDESCRIPTOR = _descriptor.Descriptor(
-  name='ProcessBundleDescriptor',
-  full_name='org.apache.beam.fn.v1.ProcessBundleDescriptor',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
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index=0,
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-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
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full_name='org.apache.beam.fn.v1.ProcessBundleDescriptor.primitive_transform', 
index=1,
-      number=2, type=11, cpp_type=10, label=3,
-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
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full_name='org.apache.beam.fn.v1.ProcessBundleDescriptor.coders', index=2,
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-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
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-)
-
-
-_PROCESSBUNDLEREQUEST = _descriptor.Descriptor(
-  name='ProcessBundleRequest',
-  full_name='org.apache.beam.fn.v1.ProcessBundleRequest',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
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full_name='org.apache.beam.fn.v1.ProcessBundleRequest.process_bundle_descriptor_reference',
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-      message_type=None, enum_type=None, containing_type=None,
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-      options=None),
-    _descriptor.FieldDescriptor(
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full_name='org.apache.beam.fn.v1.ProcessBundleRequest.cache_tokens', index=1,
-      number=2, type=11, cpp_type=10, label=3,
-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
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-)
-
-
-_PROCESSBUNDLERESPONSE = _descriptor.Descriptor(
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-  full_name='org.apache.beam.fn.v1.ProcessBundleResponse',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
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-  extensions=[
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-  options=None,
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-)
-
-
-_PROCESSBUNDLEPROGRESSREQUEST = _descriptor.Descriptor(
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-  full_name='org.apache.beam.fn.v1.ProcessBundleProgressRequest',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
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full_name='org.apache.beam.fn.v1.ProcessBundleProgressRequest.instruction_reference',
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-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
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-  extensions=[
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-)
-
-
-_PROCESSBUNDLEPROGRESSRESPONSE = _descriptor.Descriptor(
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-  full_name='org.apache.beam.fn.v1.ProcessBundleProgressResponse',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
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full_name='org.apache.beam.fn.v1.ProcessBundleProgressResponse.finished_work', 
index=0,
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-      message_type=None, enum_type=None, containing_type=None,
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-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=4164,
-  serialized_end=4183,
-)
-
-
-_STATECLEARRESPONSE = _descriptor.Descriptor(
-  name='StateClearResponse',
-  full_name='org.apache.beam.fn.v1.StateClearResponse',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=4185,
-  serialized_end=4205,
-)
-
-
-_LOGENTRY_LIST = _descriptor.Descriptor(
-  name='List',
-  full_name='org.apache.beam.fn.v1.LogEntry.List',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='log_entries', 
full_name='org.apache.beam.fn.v1.LogEntry.List.log_entries', index=0,
-      number=1, type=11, cpp_type=10, label=3,
-      has_default_value=False, default_value=[],
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=4467,
-  serialized_end=4527,
-)
-
-_LOGENTRY = _descriptor.Descriptor(
-  name='LogEntry',
-  full_name='org.apache.beam.fn.v1.LogEntry',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='severity', full_name='org.apache.beam.fn.v1.LogEntry.severity', 
index=0,
-      number=1, type=14, cpp_type=8, label=1,
-      has_default_value=False, default_value=0,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='timestamp', full_name='org.apache.beam.fn.v1.LogEntry.timestamp', 
index=1,
-      number=2, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='message', full_name='org.apache.beam.fn.v1.LogEntry.message', 
index=2,
-      number=3, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='trace', full_name='org.apache.beam.fn.v1.LogEntry.trace', index=3,
-      number=4, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='instruction_reference', 
full_name='org.apache.beam.fn.v1.LogEntry.instruction_reference', index=4,
-      number=5, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='primitive_transform_reference', 
full_name='org.apache.beam.fn.v1.LogEntry.primitive_transform_reference', 
index=5,
-      number=6, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='log_location', 
full_name='org.apache.beam.fn.v1.LogEntry.log_location', index=6,
-      number=7, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='thread', full_name='org.apache.beam.fn.v1.LogEntry.thread', 
index=7,
-      number=8, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[_LOGENTRY_LIST, ],
-  enum_types=[
-    _LOGENTRY_SEVERITY,
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=4208,
-  serialized_end=4618,
-)
-
-
-_LOGCONTROL = _descriptor.Descriptor(
-  name='LogControl',
-  full_name='org.apache.beam.fn.v1.LogControl',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=4620,
-  serialized_end=4632,
-)
-
-
-_APISERVICEDESCRIPTOR = _descriptor.Descriptor(
-  name='ApiServiceDescriptor',
-  full_name='org.apache.beam.fn.v1.ApiServiceDescriptor',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='id', full_name='org.apache.beam.fn.v1.ApiServiceDescriptor.id', 
index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='url', full_name='org.apache.beam.fn.v1.ApiServiceDescriptor.url', 
index=1,
-      number=2, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='oauth2_client_credentials_grant', 
full_name='org.apache.beam.fn.v1.ApiServiceDescriptor.oauth2_client_credentials_grant',
 index=2,
-      number=3, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-    _descriptor.OneofDescriptor(
-      name='authentication', 
full_name='org.apache.beam.fn.v1.ApiServiceDescriptor.authentication',
-      index=0, containing_type=None, fields=[]),
-  ],
-  serialized_start=4635,
-  serialized_end=4796,
-)
-
-
-_OAUTH2CLIENTCREDENTIALSGRANT = _descriptor.Descriptor(
-  name='OAuth2ClientCredentialsGrant',
-  full_name='org.apache.beam.fn.v1.OAuth2ClientCredentialsGrant',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='url', 
full_name='org.apache.beam.fn.v1.OAuth2ClientCredentialsGrant.url', index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=4798,
-  serialized_end=4841,
-)
-
-
-_DOCKERCONTAINER = _descriptor.Descriptor(
-  name='DockerContainer',
-  full_name='org.apache.beam.fn.v1.DockerContainer',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='id', full_name='org.apache.beam.fn.v1.DockerContainer.id', index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='uri', full_name='org.apache.beam.fn.v1.DockerContainer.uri', 
index=1,
-      number=2, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='registry_reference', 
full_name='org.apache.beam.fn.v1.DockerContainer.registry_reference', index=2,
-      number=3, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=_b("").decode('utf-8'),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  syntax='proto3',
-  extension_ranges=[],
-  oneofs=[
-  ],
-  serialized_start=4843,
-  serialized_end=4913,
-)
-
-_TARGET_LIST.fields_by_name['target'].message_type = _TARGET
-_TARGET_LIST.containing_type = _TARGET
-_PRIMITIVETRANSFORM_INPUTSENTRY.fields_by_name['value'].message_type = 
_TARGET_LIST
-_PRIMITIVETRANSFORM_INPUTSENTRY.containing_type = _PRIMITIVETRANSFORM
-_PRIMITIVETRANSFORM_OUTPUTSENTRY.fields_by_name['value'].message_type = 
_PCOLLECTION
-_PRIMITIVETRANSFORM_OUTPUTSENTRY.containing_type = _PRIMITIVETRANSFORM
-_PRIMITIVETRANSFORM_SIDEINPUTSENTRY.fields_by_name['value'].message_type = 
_SIDEINPUT
-_PRIMITIVETRANSFORM_SIDEINPUTSENTRY.containing_type = _PRIMITIVETRANSFORM
-_PRIMITIVETRANSFORM.fields_by_name['function_spec'].message_type = 
_FUNCTIONSPEC
-_PRIMITIVETRANSFORM.fields_by_name['inputs'].message_type = 
_PRIMITIVETRANSFORM_INPUTSENTRY
-_PRIMITIVETRANSFORM.fields_by_name['outputs'].message_type = 
_PRIMITIVETRANSFORM_OUTPUTSENTRY
-_PRIMITIVETRANSFORM.fields_by_name['side_inputs'].message_type = 
_PRIMITIVETRANSFORM_SIDEINPUTSENTRY
-_FUNCTIONSPEC.fields_by_name['data'].message_type = 
google_dot_protobuf_dot_any__pb2._ANY
-_SIDEINPUT.fields_by_name['input'].message_type = _TARGET
-_SIDEINPUT.fields_by_name['view_fn'].message_type = _FUNCTIONSPEC
-_CODER.fields_by_name['function_spec'].message_type = _FUNCTIONSPEC
-_REMOTEGRPCPORT.fields_by_name['api_service_descriptor'].message_type = 
_APISERVICEDESCRIPTOR
-_INSTRUCTIONREQUEST.fields_by_name['register'].message_type = _REGISTERREQUEST
-_INSTRUCTIONREQUEST.fields_by_name['process_bundle'].message_type = 
_PROCESSBUNDLEREQUEST
-_INSTRUCTIONREQUEST.fields_by_name['process_bundle_progress'].message_type = 
_PROCESSBUNDLEPROGRESSREQUEST
-_INSTRUCTIONREQUEST.fields_by_name['process_bundle_split'].message_type = 
_PROCESSBUNDLESPLITREQUEST
-_INSTRUCTIONREQUEST.oneofs_by_name['request'].fields.append(
-  _INSTRUCTIONREQUEST.fields_by_name['register'])
-_INSTRUCTIONREQUEST.fields_by_name['register'].containing_oneof = 
_INSTRUCTIONREQUEST.oneofs_by_name['request']
-_INSTRUCTIONREQUEST.oneofs_by_name['request'].fields.append(
-  _INSTRUCTIONREQUEST.fields_by_name['process_bundle'])
-_INSTRUCTIONREQUEST.fields_by_name['process_bundle'].containing_oneof = 
_INSTRUCTIONREQUEST.oneofs_by_name['request']
-_INSTRUCTIONREQUEST.oneofs_by_name['request'].fields.append(
-  _INSTRUCTIONREQUEST.fields_by_name['process_bundle_progress'])
-_INSTRUCTIONREQUEST.fields_by_name['process_bundle_progress'].containing_oneof 
= _INSTRUCTIONREQUEST.oneofs_by_name['request']
-_INSTRUCTIONREQUEST.oneofs_by_name['request'].fields.append(
-  _INSTRUCTIONREQUEST.fields_by_name['process_bundle_split'])
-_INSTRUCTIONREQUEST.fields_by_name['process_bundle_split'].containing_oneof = 
_INSTRUCTIONREQUEST.oneofs_by_name['request']
-_INSTRUCTIONRESPONSE.fields_by_name['register'].message_type = 
_REGISTERRESPONSE
-_INSTRUCTIONRESPONSE.fields_by_name['process_bundle'].message_type = 
_PROCESSBUNDLERESPONSE
-_INSTRUCTIONRESPONSE.fields_by_name['process_bundle_progress'].message_type = 
_PROCESSBUNDLEPROGRESSRESPONSE
-_INSTRUCTIONRESPONSE.fields_by_name['process_bundle_split'].message_type = 
_PROCESSBUNDLESPLITRESPONSE
-_INSTRUCTIONRESPONSE.oneofs_by_name['response'].fields.append(
-  _INSTRUCTIONRESPONSE.fields_by_name['register'])
-_INSTRUCTIONRESPONSE.fields_by_name['register'].containing_oneof = 
_INSTRUCTIONRESPONSE.oneofs_by_name['response']
-_INSTRUCTIONRESPONSE.oneofs_by_name['response'].fields.append(
-  _INSTRUCTIONRESPONSE.fields_by_name['process_bundle'])
-_INSTRUCTIONRESPONSE.fields_by_name['process_bundle'].containing_oneof = 
_INSTRUCTIONRESPONSE.oneofs_by_name['response']
-_INSTRUCTIONRESPONSE.oneofs_by_name['response'].fields.append(
-  _INSTRUCTIONRESPONSE.fields_by_name['process_bundle_progress'])
-_INSTRUCTIONRESPONSE.fields_by_name['process_bundle_progress'].containing_oneof
 = _INSTRUCTIONRESPONSE.oneofs_by_name['response']
-_INSTRUCTIONRESPONSE.oneofs_by_name['response'].fields.append(
-  _INSTRUCTIONRESPONSE.fields_by_name['process_bundle_split'])
-_INSTRUCTIONRESPONSE.fields_by_name['process_bundle_split'].containing_oneof = 
_INSTRUCTIONRESPONSE.oneofs_by_name['response']
-_REGISTERREQUEST.fields_by_name['process_bundle_descriptor'].message_type = 
_PROCESSBUNDLEDESCRIPTOR
-_PROCESSBUNDLEDESCRIPTOR.fields_by_name['primitive_transform'].message_type = 
_PRIMITIVETRANSFORM
-_PROCESSBUNDLEDESCRIPTOR.fields_by_name['coders'].message_type = _CODER
-_PROCESSBUNDLEREQUEST.fields_by_name['cache_tokens'].message_type = _CACHETOKEN
-_PRIMITIVETRANSFORMSPLIT.fields_by_name['completed_restriction'].message_type 
= _FUNCTIONSPEC
-_PRIMITIVETRANSFORMSPLIT.fields_by_name['remaining_restriction'].message_type 
= _FUNCTIONSPEC
-_PROCESSBUNDLESPLITRESPONSE.fields_by_name['splits'].message_type = 
_PRIMITIVETRANSFORMSPLIT
-_ELEMENTS_DATA.fields_by_name['target'].message_type = _TARGET
-_ELEMENTS_DATA.containing_type = _ELEMENTS
-_ELEMENTS.fields_by_name['data'].message_type = _ELEMENTS_DATA
-_STATEREQUEST.fields_by_name['state_key'].message_type = _STATEKEY
-_STATEREQUEST.fields_by_name['get'].message_type = _STATEGETREQUEST
-_STATEREQUEST.fields_by_name['append'].message_type = _STATEAPPENDREQUEST
-_STATEREQUEST.fields_by_name['clear'].message_type = _STATECLEARREQUEST
-_STATEREQUEST.oneofs_by_name['request'].fields.append(
-  _STATEREQUEST.fields_by_name['get'])
-_STATEREQUEST.fields_by_name['get'].containing_oneof = 
_STATEREQUEST.oneofs_by_name['request']
-_STATEREQUEST.oneofs_by_name['request'].fields.append(
-  _STATEREQUEST.fields_by_name['append'])
-_STATEREQUEST.fields_by_name['append'].containing_oneof = 
_STATEREQUEST.oneofs_by_name['request']
-_STATEREQUEST.oneofs_by_name['request'].fields.append(
-  _STATEREQUEST.fields_by_name['clear'])
-_STATEREQUEST.fields_by_name['clear'].containing_oneof = 
_STATEREQUEST.oneofs_by_name['request']
-_STATERESPONSE.fields_by_name['get'].message_type = _STATEGETRESPONSE
-_STATERESPONSE.fields_by_name['append'].message_type = _STATEAPPENDRESPONSE
-_STATERESPONSE.fields_by_name['clear'].message_type = _STATECLEARRESPONSE
-_STATERESPONSE.oneofs_by_name['response'].fields.append(
-  _STATERESPONSE.fields_by_name['get'])
-_STATERESPONSE.fields_by_name['get'].containing_oneof = 
_STATERESPONSE.oneofs_by_name['response']
-_STATERESPONSE.oneofs_by_name['response'].fields.append(
-  _STATERESPONSE.fields_by_name['append'])
-_STATERESPONSE.fields_by_name['append'].containing_oneof = 
_STATERESPONSE.oneofs_by_name['response']
-_STATERESPONSE.oneofs_by_name['response'].fields.append(
-  _STATERESPONSE.fields_by_name['clear'])
-_STATERESPONSE.fields_by_name['clear'].containing_oneof = 
_STATERESPONSE.oneofs_by_name['response']
-_CACHETOKEN.fields_by_name['target'].message_type = _TARGET
-_STATEKEY.fields_by_name['target'].message_type = _TARGET
-_STATEGETRESPONSE.fields_by_name['stream'].message_type = _CONTINUABLESTREAM
-_LOGENTRY_LIST.fields_by_name['log_entries'].message_type = _LOGENTRY
-_LOGENTRY_LIST.containing_type = _LOGENTRY
-_LOGENTRY.fields_by_name['severity'].enum_type = _LOGENTRY_SEVERITY
-_LOGENTRY.fields_by_name['timestamp'].message_type = 
google_dot_protobuf_dot_timestamp__pb2._TIMESTAMP
-_LOGENTRY_SEVERITY.containing_type = _LOGENTRY
-_APISERVICEDESCRIPTOR.fields_by_name['oauth2_client_credentials_grant'].message_type
 = _OAUTH2CLIENTCREDENTIALSGRANT
-_APISERVICEDESCRIPTOR.oneofs_by_name['authentication'].fields.append(
-  _APISERVICEDESCRIPTOR.fields_by_name['oauth2_client_credentials_grant'])
-_APISERVICEDESCRIPTOR.fields_by_name['oauth2_client_credentials_grant'].containing_oneof
 = _APISERVICEDESCRIPTOR.oneofs_by_name['authentication']
-DESCRIPTOR.message_types_by_name['Target'] = _TARGET
-DESCRIPTOR.message_types_by_name['PCollection'] = _PCOLLECTION
-DESCRIPTOR.message_types_by_name['PrimitiveTransform'] = _PRIMITIVETRANSFORM
-DESCRIPTOR.message_types_by_name['FunctionSpec'] = _FUNCTIONSPEC
-DESCRIPTOR.message_types_by_name['SideInput'] = _SIDEINPUT
-DESCRIPTOR.message_types_by_name['Coder'] = _CODER
-DESCRIPTOR.message_types_by_name['RemoteGrpcPort'] = _REMOTEGRPCPORT
-DESCRIPTOR.message_types_by_name['InstructionRequest'] = _INSTRUCTIONREQUEST
-DESCRIPTOR.message_types_by_name['InstructionResponse'] = _INSTRUCTIONRESPONSE
-DESCRIPTOR.message_types_by_name['RegisterRequest'] = _REGISTERREQUEST
-DESCRIPTOR.message_types_by_name['RegisterResponse'] = _REGISTERRESPONSE
-DESCRIPTOR.message_types_by_name['ProcessBundleDescriptor'] = 
_PROCESSBUNDLEDESCRIPTOR
-DESCRIPTOR.message_types_by_name['ProcessBundleRequest'] = 
_PROCESSBUNDLEREQUEST
-DESCRIPTOR.message_types_by_name['ProcessBundleResponse'] = 
_PROCESSBUNDLERESPONSE
-DESCRIPTOR.message_types_by_name['ProcessBundleProgressRequest'] = 
_PROCESSBUNDLEPROGRESSREQUEST
-DESCRIPTOR.message_types_by_name['ProcessBundleProgressResponse'] = 
_PROCESSBUNDLEPROGRESSRESPONSE
-DESCRIPTOR.message_types_by_name['ProcessBundleSplitRequest'] = 
_PROCESSBUNDLESPLITREQUEST
-DESCRIPTOR.message_types_by_name['ElementCountRestriction'] = 
_ELEMENTCOUNTRESTRICTION
-DESCRIPTOR.message_types_by_name['ElementCountSkipRestriction'] = 
_ELEMENTCOUNTSKIPRESTRICTION
-DESCRIPTOR.message_types_by_name['PrimitiveTransformSplit'] = 
_PRIMITIVETRANSFORMSPLIT
-DESCRIPTOR.message_types_by_name['ProcessBundleSplitResponse'] = 
_PROCESSBUNDLESPLITRESPONSE
-DESCRIPTOR.message_types_by_name['Elements'] = _ELEMENTS
-DESCRIPTOR.message_types_by_name['StateRequest'] = _STATEREQUEST
-DESCRIPTOR.message_types_by_name['StateResponse'] = _STATERESPONSE
-DESCRIPTOR.message_types_by_name['CacheToken'] = _CACHETOKEN
-DESCRIPTOR.message_types_by_name['StateKey'] = _STATEKEY
-DESCRIPTOR.message_types_by_name['ContinuableStream'] = _CONTINUABLESTREAM
-DESCRIPTOR.message_types_by_name['StateGetRequest'] = _STATEGETREQUEST
-DESCRIPTOR.message_types_by_name['StateGetResponse'] = _STATEGETRESPONSE
-DESCRIPTOR.message_types_by_name['StateAppendRequest'] = _STATEAPPENDREQUEST
-DESCRIPTOR.message_types_by_name['StateAppendResponse'] = _STATEAPPENDRESPONSE
-DESCRIPTOR.message_types_by_name['StateClearRequest'] = _STATECLEARREQUEST
-DESCRIPTOR.message_types_by_name['StateClearResponse'] = _STATECLEARRESPONSE
-DESCRIPTOR.message_types_by_name['LogEntry'] = _LOGENTRY
-DESCRIPTOR.message_types_by_name['LogControl'] = _LOGCONTROL
-DESCRIPTOR.message_types_by_name['ApiServiceDescriptor'] = 
_APISERVICEDESCRIPTOR
-DESCRIPTOR.message_types_by_name['OAuth2ClientCredentialsGrant'] = 
_OAUTH2CLIENTCREDENTIALSGRANT
-DESCRIPTOR.message_types_by_name['DockerContainer'] = _DOCKERCONTAINER
-
-Target = _reflection.GeneratedProtocolMessageType('Target', 
(_message.Message,), dict(
-
-  List = _reflection.GeneratedProtocolMessageType('List', (_message.Message,), 
dict(
-    DESCRIPTOR = _TARGET_LIST,
-    __module__ = 'beam_fn_api_pb2'
-    # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.Target.List)
-    ))
-  ,
-  DESCRIPTOR = _TARGET,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.Target)
-  ))
-_sym_db.RegisterMessage(Target)
-_sym_db.RegisterMessage(Target.List)
-
-PCollection = _reflection.GeneratedProtocolMessageType('PCollection', 
(_message.Message,), dict(
-  DESCRIPTOR = _PCOLLECTION,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.PCollection)
-  ))
-_sym_db.RegisterMessage(PCollection)
-
-PrimitiveTransform = 
_reflection.GeneratedProtocolMessageType('PrimitiveTransform', 
(_message.Message,), dict(
-
-  InputsEntry = _reflection.GeneratedProtocolMessageType('InputsEntry', 
(_message.Message,), dict(
-    DESCRIPTOR = _PRIMITIVETRANSFORM_INPUTSENTRY,
-    __module__ = 'beam_fn_api_pb2'
-    # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.PrimitiveTransform.InputsEntry)
-    ))
-  ,
-
-  OutputsEntry = _reflection.GeneratedProtocolMessageType('OutputsEntry', 
(_message.Message,), dict(
-    DESCRIPTOR = _PRIMITIVETRANSFORM_OUTPUTSENTRY,
-    __module__ = 'beam_fn_api_pb2'
-    # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.PrimitiveTransform.OutputsEntry)
-    ))
-  ,
-
-  SideInputsEntry = 
_reflection.GeneratedProtocolMessageType('SideInputsEntry', 
(_message.Message,), dict(
-    DESCRIPTOR = _PRIMITIVETRANSFORM_SIDEINPUTSENTRY,
-    __module__ = 'beam_fn_api_pb2'
-    # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.PrimitiveTransform.SideInputsEntry)
-    ))
-  ,
-  DESCRIPTOR = _PRIMITIVETRANSFORM,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.PrimitiveTransform)
-  ))
-_sym_db.RegisterMessage(PrimitiveTransform)
-_sym_db.RegisterMessage(PrimitiveTransform.InputsEntry)
-_sym_db.RegisterMessage(PrimitiveTransform.OutputsEntry)
-_sym_db.RegisterMessage(PrimitiveTransform.SideInputsEntry)
-
-FunctionSpec = _reflection.GeneratedProtocolMessageType('FunctionSpec', 
(_message.Message,), dict(
-  DESCRIPTOR = _FUNCTIONSPEC,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.FunctionSpec)
-  ))
-_sym_db.RegisterMessage(FunctionSpec)
-
-SideInput = _reflection.GeneratedProtocolMessageType('SideInput', 
(_message.Message,), dict(
-  DESCRIPTOR = _SIDEINPUT,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.SideInput)
-  ))
-_sym_db.RegisterMessage(SideInput)
-
-Coder = _reflection.GeneratedProtocolMessageType('Coder', (_message.Message,), 
dict(
-  DESCRIPTOR = _CODER,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.Coder)
-  ))
-_sym_db.RegisterMessage(Coder)
-
-RemoteGrpcPort = _reflection.GeneratedProtocolMessageType('RemoteGrpcPort', 
(_message.Message,), dict(
-  DESCRIPTOR = _REMOTEGRPCPORT,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.RemoteGrpcPort)
-  ))
-_sym_db.RegisterMessage(RemoteGrpcPort)
-
-InstructionRequest = 
_reflection.GeneratedProtocolMessageType('InstructionRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _INSTRUCTIONREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.InstructionRequest)
-  ))
-_sym_db.RegisterMessage(InstructionRequest)
-
-InstructionResponse = 
_reflection.GeneratedProtocolMessageType('InstructionResponse', 
(_message.Message,), dict(
-  DESCRIPTOR = _INSTRUCTIONRESPONSE,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.InstructionResponse)
-  ))
-_sym_db.RegisterMessage(InstructionResponse)
-
-RegisterRequest = _reflection.GeneratedProtocolMessageType('RegisterRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _REGISTERREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.RegisterRequest)
-  ))
-_sym_db.RegisterMessage(RegisterRequest)
-
-RegisterResponse = 
_reflection.GeneratedProtocolMessageType('RegisterResponse', 
(_message.Message,), dict(
-  DESCRIPTOR = _REGISTERRESPONSE,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.RegisterResponse)
-  ))
-_sym_db.RegisterMessage(RegisterResponse)
-
-ProcessBundleDescriptor = 
_reflection.GeneratedProtocolMessageType('ProcessBundleDescriptor', 
(_message.Message,), dict(
-  DESCRIPTOR = _PROCESSBUNDLEDESCRIPTOR,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ProcessBundleDescriptor)
-  ))
-_sym_db.RegisterMessage(ProcessBundleDescriptor)
-
-ProcessBundleRequest = 
_reflection.GeneratedProtocolMessageType('ProcessBundleRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _PROCESSBUNDLEREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ProcessBundleRequest)
-  ))
-_sym_db.RegisterMessage(ProcessBundleRequest)
-
-ProcessBundleResponse = 
_reflection.GeneratedProtocolMessageType('ProcessBundleResponse', 
(_message.Message,), dict(
-  DESCRIPTOR = _PROCESSBUNDLERESPONSE,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ProcessBundleResponse)
-  ))
-_sym_db.RegisterMessage(ProcessBundleResponse)
-
-ProcessBundleProgressRequest = 
_reflection.GeneratedProtocolMessageType('ProcessBundleProgressRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _PROCESSBUNDLEPROGRESSREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ProcessBundleProgressRequest)
-  ))
-_sym_db.RegisterMessage(ProcessBundleProgressRequest)
-
-ProcessBundleProgressResponse = 
_reflection.GeneratedProtocolMessageType('ProcessBundleProgressResponse', 
(_message.Message,), dict(
-  DESCRIPTOR = _PROCESSBUNDLEPROGRESSRESPONSE,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ProcessBundleProgressResponse)
-  ))
-_sym_db.RegisterMessage(ProcessBundleProgressResponse)
-
-ProcessBundleSplitRequest = 
_reflection.GeneratedProtocolMessageType('ProcessBundleSplitRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _PROCESSBUNDLESPLITREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ProcessBundleSplitRequest)
-  ))
-_sym_db.RegisterMessage(ProcessBundleSplitRequest)
-
-ElementCountRestriction = 
_reflection.GeneratedProtocolMessageType('ElementCountRestriction', 
(_message.Message,), dict(
-  DESCRIPTOR = _ELEMENTCOUNTRESTRICTION,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ElementCountRestriction)
-  ))
-_sym_db.RegisterMessage(ElementCountRestriction)
-
-ElementCountSkipRestriction = 
_reflection.GeneratedProtocolMessageType('ElementCountSkipRestriction', 
(_message.Message,), dict(
-  DESCRIPTOR = _ELEMENTCOUNTSKIPRESTRICTION,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ElementCountSkipRestriction)
-  ))
-_sym_db.RegisterMessage(ElementCountSkipRestriction)
-
-PrimitiveTransformSplit = 
_reflection.GeneratedProtocolMessageType('PrimitiveTransformSplit', 
(_message.Message,), dict(
-  DESCRIPTOR = _PRIMITIVETRANSFORMSPLIT,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.PrimitiveTransformSplit)
-  ))
-_sym_db.RegisterMessage(PrimitiveTransformSplit)
-
-ProcessBundleSplitResponse = 
_reflection.GeneratedProtocolMessageType('ProcessBundleSplitResponse', 
(_message.Message,), dict(
-  DESCRIPTOR = _PROCESSBUNDLESPLITRESPONSE,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ProcessBundleSplitResponse)
-  ))
-_sym_db.RegisterMessage(ProcessBundleSplitResponse)
-
-Elements = _reflection.GeneratedProtocolMessageType('Elements', 
(_message.Message,), dict(
-
-  Data = _reflection.GeneratedProtocolMessageType('Data', (_message.Message,), 
dict(
-    DESCRIPTOR = _ELEMENTS_DATA,
-    __module__ = 'beam_fn_api_pb2'
-    # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.Elements.Data)
-    ))
-  ,
-  DESCRIPTOR = _ELEMENTS,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.Elements)
-  ))
-_sym_db.RegisterMessage(Elements)
-_sym_db.RegisterMessage(Elements.Data)
-
-StateRequest = _reflection.GeneratedProtocolMessageType('StateRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _STATEREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.StateRequest)
-  ))
-_sym_db.RegisterMessage(StateRequest)
-
-StateResponse = _reflection.GeneratedProtocolMessageType('StateResponse', 
(_message.Message,), dict(
-  DESCRIPTOR = _STATERESPONSE,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.StateResponse)
-  ))
-_sym_db.RegisterMessage(StateResponse)
-
-CacheToken = _reflection.GeneratedProtocolMessageType('CacheToken', 
(_message.Message,), dict(
-  DESCRIPTOR = _CACHETOKEN,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.CacheToken)
-  ))
-_sym_db.RegisterMessage(CacheToken)
-
-StateKey = _reflection.GeneratedProtocolMessageType('StateKey', 
(_message.Message,), dict(
-  DESCRIPTOR = _STATEKEY,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.StateKey)
-  ))
-_sym_db.RegisterMessage(StateKey)
-
-ContinuableStream = 
_reflection.GeneratedProtocolMessageType('ContinuableStream', 
(_message.Message,), dict(
-  DESCRIPTOR = _CONTINUABLESTREAM,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.ContinuableStream)
-  ))
-_sym_db.RegisterMessage(ContinuableStream)
-
-StateGetRequest = _reflection.GeneratedProtocolMessageType('StateGetRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _STATEGETREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.StateGetRequest)
-  ))
-_sym_db.RegisterMessage(StateGetRequest)
-
-StateGetResponse = 
_reflection.GeneratedProtocolMessageType('StateGetResponse', 
(_message.Message,), dict(
-  DESCRIPTOR = _STATEGETRESPONSE,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.StateGetResponse)
-  ))
-_sym_db.RegisterMessage(StateGetResponse)
-
-StateAppendRequest = 
_reflection.GeneratedProtocolMessageType('StateAppendRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _STATEAPPENDREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.StateAppendRequest)
-  ))
-_sym_db.RegisterMessage(StateAppendRequest)
-
-StateAppendResponse = 
_reflection.GeneratedProtocolMessageType('StateAppendResponse', 
(_message.Message,), dict(
-  DESCRIPTOR = _STATEAPPENDRESPONSE,
-  __module__ = 'beam_fn_api_pb2'
-  # 
@@protoc_insertion_point(class_scope:org.apache.beam.fn.v1.StateAppendResponse)
-  ))
-_sym_db.RegisterMessage(StateAppendResponse)
-
-StateClearRequest = 
_reflection.GeneratedProtocolMessageType('StateClearRequest', 
(_message.Message,), dict(
-  DESCRIPTOR = _STATECLEARREQUEST,
-  __module__ = 'beam_fn_api_pb2'
-  # @@protoc_insertion_poi

<TRUNCATED>

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