docs(dataproc): remove 'cloud' from references to dataproc; add py2 deprecation warning; add 3.8 tests (via synth)

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

synthtool > Executing /tmpfs/src/git/autosynth/working_repo/dataproc/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:264654a37596a44b0668b8ce6ac41082d713f6ee150b3fc6425fa78cc64e4f20
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/cloud/dataproc/artman_dataproc_v1beta2.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1beta2.
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1beta2/clusters.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1beta2/google/cloud/dataproc_v1beta2/proto/clusters.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1beta2/jobs.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1beta2/google/cloud/dataproc_v1beta2/proto/jobs.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1beta2/operations.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1beta2/google/cloud/dataproc_v1beta2/proto/operations.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1beta2/autoscaling_policies.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1beta2/google/cloud/dataproc_v1beta2/proto/autoscaling_policies.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1beta2/workflow_templates.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1beta2/google/cloud/dataproc_v1beta2/proto/workflow_templates.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1beta2/shared.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1beta2/google/cloud/dataproc_v1beta2/proto/shared.proto
synthtool > Placed proto files into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1beta2/google/cloud/dataproc_v1beta2/proto.
synthtool > Replaced 'metadata_type=operations_pb2.ClusterOperationMetadata,' in google/cloud/dataproc_v1beta2/gapic/cluster_controller_client.py.
synthtool > No replacements made in google/cloud/dataproc_v1beta2/gapic/cluster_controller_client.py for pattern \s+<strong>Note:</strong>.*
(.*
)+?.*types.FieldMask., maybe replacement is not longer needed?
synthtool > Replaced ', and must\n\\s+conform to the following PCRE regular expression:(.*\n)+?.*No more than 32' in google/cloud/dataproc_v1beta2/proto/workflow_templates_pb2.py.
synthtool > Replaced ', and must conform to\n\\s+the following regular expression:(.*\n)+?.* No more than' in google/cloud/dataproc_v1beta2/proto/workflow_templates_pb2.py.
synthtool > Running generator for google/cloud/dataproc/artman_dataproc_v1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1.
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1/clusters.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1/google/cloud/dataproc_v1/proto/clusters.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1/jobs.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1/google/cloud/dataproc_v1/proto/jobs.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1/operations.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1/google/cloud/dataproc_v1/proto/operations.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1/autoscaling_policies.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1/google/cloud/dataproc_v1/proto/autoscaling_policies.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1/workflow_templates.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1/google/cloud/dataproc_v1/proto/workflow_templates.proto
synthtool > Copy: /home/kbuilder/.cache/synthtool/googleapis/google/cloud/dataproc/v1/shared.proto to /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1/google/cloud/dataproc_v1/proto/shared.proto
synthtool > Placed proto files into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/python/dataproc-v1/google/cloud/dataproc_v1/proto.
synthtool > Replaced 'metadata_type=operations_pb2.ClusterOperationMetadata,' in google/cloud/dataproc_v1/gapic/cluster_controller_client.py.
synthtool > No replacements made in google/cloud/dataproc_v1/gapic/cluster_controller_client.py for pattern \s+<strong>Note:</strong>.*
(.*
)+?.*types.FieldMask., maybe replacement is not longer needed?
synthtool > Replaced ', and must\n\\s+conform to the following PCRE regular expression:(.*\n)+?.*No more than 32' in google/cloud/dataproc_v1/proto/workflow_templates_pb2.py.
synthtool > Replaced ', and must conform to\n\\s+the following regular expression:(.*\n)+?.* No more than' in google/cloud/dataproc_v1/proto/workflow_templates_pb2.py.
synthtool > Replaced '# Generated by the protocol buffer compiler.  DO NOT EDIT!' in google/cloud/dataproc_v1beta2/proto/clusters_pb2.py.
.coveragerc
.flake8
MANIFEST.in
docs/_static/custom.css
docs/_templates/layout.html
noxfile.py.j2
setup.cfg
Running session blacken
Creating virtual environment (virtualenv) using python3.6 in .nox/blacken
pip install black==19.3b0
black docs google tests noxfile.py setup.py
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reformatted /tmpfs/src/git/autosynth/working_repo/dataproc/google/cloud/dataproc_v1/proto/autoscaling_policies_pb2_grpc.py
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reformatted /tmpfs/src/git/autosynth/working_repo/dataproc/google/cloud/dataproc_v1/gapic/workflow_template_service_client.py
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reformatted /tmpfs/src/git/autosynth/working_repo/dataproc/google/cloud/dataproc_v1beta2/gapic/workflow_template_service_client.py
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All done! ✨ 🍰 ✨
65 files reformatted, 7 files left unchanged.
Session blacken was successful.
synthtool > Wrote metadata to synth.metadata.