diff --git a/google/cloud/dataproc_v1/services/autoscaling_policy_service/client.py b/google/cloud/dataproc_v1/services/autoscaling_policy_service/client.py
index b296ced8..4d3e5aad 100644
--- a/google/cloud/dataproc_v1/services/autoscaling_policy_service/client.py
+++ b/google/cloud/dataproc_v1/services/autoscaling_policy_service/client.py
@@ -17,7 +17,7 @@
 from distutils import util
 import os
 import re
-from typing import Callable, Dict, Optional, Sequence, Tuple, Type, Union
+from typing import Dict, Optional, Sequence, Tuple, Type, Union
 import pkg_resources
 
 from google.api_core import client_options as client_options_lib  # type: ignore
@@ -358,7 +358,9 @@ def __init__(
 
     def create_autoscaling_policy(
         self,
-        request: autoscaling_policies.CreateAutoscalingPolicyRequest = None,
+        request: Union[
+            autoscaling_policies.CreateAutoscalingPolicyRequest, dict
+        ] = None,
         *,
         parent: str = None,
         policy: autoscaling_policies.AutoscalingPolicy = None,
@@ -369,7 +371,7 @@ def create_autoscaling_policy(
         r"""Creates new autoscaling policy.
 
         Args:
-            request (google.cloud.dataproc_v1.types.CreateAutoscalingPolicyRequest):
+            request (Union[google.cloud.dataproc_v1.types.CreateAutoscalingPolicyRequest, dict]):
                 The request object. A request to create an autoscaling
                 policy.
             parent (str):
@@ -452,7 +454,9 @@ def create_autoscaling_policy(
 
     def update_autoscaling_policy(
         self,
-        request: autoscaling_policies.UpdateAutoscalingPolicyRequest = None,
+        request: Union[
+            autoscaling_policies.UpdateAutoscalingPolicyRequest, dict
+        ] = None,
         *,
         policy: autoscaling_policies.AutoscalingPolicy = None,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
@@ -465,7 +469,7 @@ def update_autoscaling_policy(
         replacements.
 
         Args:
-            request (google.cloud.dataproc_v1.types.UpdateAutoscalingPolicyRequest):
+            request (Union[google.cloud.dataproc_v1.types.UpdateAutoscalingPolicyRequest, dict]):
                 The request object. A request to update an autoscaling
                 policy.
             policy (google.cloud.dataproc_v1.types.AutoscalingPolicy):
@@ -530,7 +534,7 @@ def update_autoscaling_policy(
 
     def get_autoscaling_policy(
         self,
-        request: autoscaling_policies.GetAutoscalingPolicyRequest = None,
+        request: Union[autoscaling_policies.GetAutoscalingPolicyRequest, dict] = None,
         *,
         name: str = None,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
@@ -540,7 +544,7 @@ def get_autoscaling_policy(
         r"""Retrieves autoscaling policy.
 
         Args:
-            request (google.cloud.dataproc_v1.types.GetAutoscalingPolicyRequest):
+            request (Union[google.cloud.dataproc_v1.types.GetAutoscalingPolicyRequest, dict]):
                 The request object. A request to fetch an autoscaling
                 policy.
             name (str):
@@ -611,7 +615,9 @@ def get_autoscaling_policy(
 
     def list_autoscaling_policies(
         self,
-        request: autoscaling_policies.ListAutoscalingPoliciesRequest = None,
+        request: Union[
+            autoscaling_policies.ListAutoscalingPoliciesRequest, dict
+        ] = None,
         *,
         parent: str = None,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
@@ -621,7 +627,7 @@ def list_autoscaling_policies(
         r"""Lists autoscaling policies in the project.
 
         Args:
-            request (google.cloud.dataproc_v1.types.ListAutoscalingPoliciesRequest):
+            request (Union[google.cloud.dataproc_v1.types.ListAutoscalingPoliciesRequest, dict]):
                 The request object. A request to list autoscaling
                 policies in a project.
             parent (str):
@@ -703,7 +709,9 @@ def list_autoscaling_policies(
 
     def delete_autoscaling_policy(
         self,
-        request: autoscaling_policies.DeleteAutoscalingPolicyRequest = None,
+        request: Union[
+            autoscaling_policies.DeleteAutoscalingPolicyRequest, dict
+        ] = None,
         *,
         name: str = None,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
@@ -715,7 +723,7 @@ def delete_autoscaling_policy(
         more clusters.
 
         Args:
-            request (google.cloud.dataproc_v1.types.DeleteAutoscalingPolicyRequest):
+            request (Union[google.cloud.dataproc_v1.types.DeleteAutoscalingPolicyRequest, dict]):
                 The request object. A request to delete an autoscaling
                 policy.
                 Autoscaling policies in use by one or more clusters will
diff --git a/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/base.py b/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/base.py
index da99b6a8..9c988099 100644
--- a/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/base.py
+++ b/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/base.py
@@ -116,7 +116,7 @@ def __init__(
                 **scopes_kwargs, quota_project_id=quota_project_id
             )
 
-        # If the credentials is service account credentials, then always try to use self signed JWT.
+        # If the credentials are service account credentials, then always try to use self signed JWT.
         if (
             always_use_jwt_access
             and isinstance(credentials, service_account.Credentials)
diff --git a/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/grpc.py b/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/grpc.py
index e55dcb1d..83931784 100644
--- a/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/grpc.py
+++ b/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/grpc.py
@@ -82,16 +82,16 @@ def __init__(
             api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                 If provided, it overrides the ``host`` argument and tries to create
                 a mutual TLS channel with client SSL credentials from
-                ``client_cert_source`` or applicatin default SSL credentials.
+                ``client_cert_source`` or application default SSL credentials.
             client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 Deprecated. A callback to provide client SSL certificate bytes and
                 private key bytes, both in PEM format. It is ignored if
                 ``api_mtls_endpoint`` is None.
             ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
-                for grpc channel. It is ignored if ``channel`` is provided.
+                for the grpc channel. It is ignored if ``channel`` is provided.
             client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 A callback to provide client certificate bytes and private key bytes,
-                both in PEM format. It is used to configure mutual TLS channel. It is
+                both in PEM format. It is used to configure a mutual TLS channel. It is
                 ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
             quota_project_id (Optional[str]): An optional project to use for billing
                 and quota.
diff --git a/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/grpc_asyncio.py b/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/grpc_asyncio.py
index 654f7eee..ae024621 100644
--- a/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/grpc_asyncio.py
+++ b/google/cloud/dataproc_v1/services/autoscaling_policy_service/transports/grpc_asyncio.py
@@ -129,16 +129,16 @@ def __init__(
             api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                 If provided, it overrides the ``host`` argument and tries to create
                 a mutual TLS channel with client SSL credentials from
-                ``client_cert_source`` or applicatin default SSL credentials.
+                ``client_cert_source`` or application default SSL credentials.
             client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 Deprecated. A callback to provide client SSL certificate bytes and
                 private key bytes, both in PEM format. It is ignored if
                 ``api_mtls_endpoint`` is None.
             ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
-                for grpc channel. It is ignored if ``channel`` is provided.
+                for the grpc channel. It is ignored if ``channel`` is provided.
             client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 A callback to provide client certificate bytes and private key bytes,
-                both in PEM format. It is used to configure mutual TLS channel. It is
+                both in PEM format. It is used to configure a mutual TLS channel. It is
                 ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
             quota_project_id (Optional[str]): An optional project to use for billing
                 and quota.
diff --git a/google/cloud/dataproc_v1/services/cluster_controller/client.py b/google/cloud/dataproc_v1/services/cluster_controller/client.py
index a746eeba..870eb9e9 100644
--- a/google/cloud/dataproc_v1/services/cluster_controller/client.py
+++ b/google/cloud/dataproc_v1/services/cluster_controller/client.py
@@ -17,7 +17,7 @@
 from distutils import util
 import os
 import re
-from typing import Callable, Dict, Optional, Sequence, Tuple, Type, Union
+from typing import Dict, Optional, Sequence, Tuple, Type, Union
 import pkg_resources
 
 from google.api_core import client_options as client_options_lib  # type: ignore
@@ -377,7 +377,7 @@ def __init__(
 
     def create_cluster(
         self,
-        request: clusters.CreateClusterRequest = None,
+        request: Union[clusters.CreateClusterRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -392,7 +392,7 @@ def create_cluster(
         `ClusterOperationMetadata <https://cloud.google.com/dataproc/docs/reference/rpc/google.cloud.dataproc.v1#clusteroperationmetadata>`__.
 
         Args:
-            request (google.cloud.dataproc_v1.types.CreateClusterRequest):
+            request (Union[google.cloud.dataproc_v1.types.CreateClusterRequest, dict]):
                 The request object. A request to create a cluster.
             project_id (str):
                 Required. The ID of the Google Cloud
@@ -473,7 +473,7 @@ def create_cluster(
 
     def update_cluster(
         self,
-        request: clusters.UpdateClusterRequest = None,
+        request: Union[clusters.UpdateClusterRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -490,7 +490,7 @@ def update_cluster(
         `ClusterOperationMetadata <https://cloud.google.com/dataproc/docs/reference/rpc/google.cloud.dataproc.v1#clusteroperationmetadata>`__.
 
         Args:
-            request (google.cloud.dataproc_v1.types.UpdateClusterRequest):
+            request (Union[google.cloud.dataproc_v1.types.UpdateClusterRequest, dict]):
                 The request object. A request to update a cluster.
             project_id (str):
                 Required. The ID of the Google Cloud
@@ -648,7 +648,7 @@ def update_cluster(
 
     def stop_cluster(
         self,
-        request: clusters.StopClusterRequest = None,
+        request: Union[clusters.StopClusterRequest, dict] = None,
         *,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
         timeout: float = None,
@@ -657,7 +657,7 @@ def stop_cluster(
         r"""Stops a cluster in a project.
 
         Args:
-            request (google.cloud.dataproc_v1.types.StopClusterRequest):
+            request (Union[google.cloud.dataproc_v1.types.StopClusterRequest, dict]):
                 The request object. A request to stop a cluster.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
                 should be retried.
@@ -701,7 +701,7 @@ def stop_cluster(
 
     def start_cluster(
         self,
-        request: clusters.StartClusterRequest = None,
+        request: Union[clusters.StartClusterRequest, dict] = None,
         *,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
         timeout: float = None,
@@ -710,7 +710,7 @@ def start_cluster(
         r"""Starts a cluster in a project.
 
         Args:
-            request (google.cloud.dataproc_v1.types.StartClusterRequest):
+            request (Union[google.cloud.dataproc_v1.types.StartClusterRequest, dict]):
                 The request object. A request to start a cluster.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
                 should be retried.
@@ -754,7 +754,7 @@ def start_cluster(
 
     def delete_cluster(
         self,
-        request: clusters.DeleteClusterRequest = None,
+        request: Union[clusters.DeleteClusterRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -769,7 +769,7 @@ def delete_cluster(
         `ClusterOperationMetadata <https://cloud.google.com/dataproc/docs/reference/rpc/google.cloud.dataproc.v1#clusteroperationmetadata>`__.
 
         Args:
-            request (google.cloud.dataproc_v1.types.DeleteClusterRequest):
+            request (Union[google.cloud.dataproc_v1.types.DeleteClusterRequest, dict]):
                 The request object. A request to delete a cluster.
             project_id (str):
                 Required. The ID of the Google Cloud
@@ -861,7 +861,7 @@ def delete_cluster(
 
     def get_cluster(
         self,
-        request: clusters.GetClusterRequest = None,
+        request: Union[clusters.GetClusterRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -874,7 +874,7 @@ def get_cluster(
         project.
 
         Args:
-            request (google.cloud.dataproc_v1.types.GetClusterRequest):
+            request (Union[google.cloud.dataproc_v1.types.GetClusterRequest, dict]):
                 The request object. Request to get the resource
                 representation for a cluster in a project.
             project_id (str):
@@ -947,7 +947,7 @@ def get_cluster(
 
     def list_clusters(
         self,
-        request: clusters.ListClustersRequest = None,
+        request: Union[clusters.ListClustersRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -960,7 +960,7 @@ def list_clusters(
         alphabetically.
 
         Args:
-            request (google.cloud.dataproc_v1.types.ListClustersRequest):
+            request (Union[google.cloud.dataproc_v1.types.ListClustersRequest, dict]):
                 The request object. A request to list the clusters in a
                 project.
             project_id (str):
@@ -1064,7 +1064,7 @@ def list_clusters(
 
     def diagnose_cluster(
         self,
-        request: clusters.DiagnoseClusterRequest = None,
+        request: Union[clusters.DiagnoseClusterRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -1083,7 +1083,7 @@ def diagnose_cluster(
         `DiagnoseClusterResults <https://cloud.google.com/dataproc/docs/reference/rpc/google.cloud.dataproc.v1#diagnoseclusterresults>`__.
 
         Args:
-            request (google.cloud.dataproc_v1.types.DiagnoseClusterRequest):
+            request (Union[google.cloud.dataproc_v1.types.DiagnoseClusterRequest, dict]):
                 The request object. A request to collect cluster
                 diagnostic information.
             project_id (str):
diff --git a/google/cloud/dataproc_v1/services/cluster_controller/transports/base.py b/google/cloud/dataproc_v1/services/cluster_controller/transports/base.py
index 39261518..508158ed 100644
--- a/google/cloud/dataproc_v1/services/cluster_controller/transports/base.py
+++ b/google/cloud/dataproc_v1/services/cluster_controller/transports/base.py
@@ -117,7 +117,7 @@ def __init__(
                 **scopes_kwargs, quota_project_id=quota_project_id
             )
 
-        # If the credentials is service account credentials, then always try to use self signed JWT.
+        # If the credentials are service account credentials, then always try to use self signed JWT.
         if (
             always_use_jwt_access
             and isinstance(credentials, service_account.Credentials)
diff --git a/google/cloud/dataproc_v1/services/cluster_controller/transports/grpc.py b/google/cloud/dataproc_v1/services/cluster_controller/transports/grpc.py
index 8e063266..67d97c46 100644
--- a/google/cloud/dataproc_v1/services/cluster_controller/transports/grpc.py
+++ b/google/cloud/dataproc_v1/services/cluster_controller/transports/grpc.py
@@ -83,16 +83,16 @@ def __init__(
             api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                 If provided, it overrides the ``host`` argument and tries to create
                 a mutual TLS channel with client SSL credentials from
-                ``client_cert_source`` or applicatin default SSL credentials.
+                ``client_cert_source`` or application default SSL credentials.
             client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 Deprecated. A callback to provide client SSL certificate bytes and
                 private key bytes, both in PEM format. It is ignored if
                 ``api_mtls_endpoint`` is None.
             ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
-                for grpc channel. It is ignored if ``channel`` is provided.
+                for the grpc channel. It is ignored if ``channel`` is provided.
             client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 A callback to provide client certificate bytes and private key bytes,
-                both in PEM format. It is used to configure mutual TLS channel. It is
+                both in PEM format. It is used to configure a mutual TLS channel. It is
                 ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
             quota_project_id (Optional[str]): An optional project to use for billing
                 and quota.
diff --git a/google/cloud/dataproc_v1/services/cluster_controller/transports/grpc_asyncio.py b/google/cloud/dataproc_v1/services/cluster_controller/transports/grpc_asyncio.py
index c9d6a6a1..e19d261b 100644
--- a/google/cloud/dataproc_v1/services/cluster_controller/transports/grpc_asyncio.py
+++ b/google/cloud/dataproc_v1/services/cluster_controller/transports/grpc_asyncio.py
@@ -130,16 +130,16 @@ def __init__(
             api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                 If provided, it overrides the ``host`` argument and tries to create
                 a mutual TLS channel with client SSL credentials from
-                ``client_cert_source`` or applicatin default SSL credentials.
+                ``client_cert_source`` or application default SSL credentials.
             client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 Deprecated. A callback to provide client SSL certificate bytes and
                 private key bytes, both in PEM format. It is ignored if
                 ``api_mtls_endpoint`` is None.
             ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
-                for grpc channel. It is ignored if ``channel`` is provided.
+                for the grpc channel. It is ignored if ``channel`` is provided.
             client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 A callback to provide client certificate bytes and private key bytes,
-                both in PEM format. It is used to configure mutual TLS channel. It is
+                both in PEM format. It is used to configure a mutual TLS channel. It is
                 ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
             quota_project_id (Optional[str]): An optional project to use for billing
                 and quota.
diff --git a/google/cloud/dataproc_v1/services/job_controller/client.py b/google/cloud/dataproc_v1/services/job_controller/client.py
index 2ad64ee3..1648b69c 100644
--- a/google/cloud/dataproc_v1/services/job_controller/client.py
+++ b/google/cloud/dataproc_v1/services/job_controller/client.py
@@ -17,7 +17,7 @@
 from distutils import util
 import os
 import re
-from typing import Callable, Dict, Optional, Sequence, Tuple, Type, Union
+from typing import Dict, Optional, Sequence, Tuple, Type, Union
 import pkg_resources
 
 from google.api_core import client_options as client_options_lib  # type: ignore
@@ -336,7 +336,7 @@ def __init__(
 
     def submit_job(
         self,
-        request: jobs.SubmitJobRequest = None,
+        request: Union[jobs.SubmitJobRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -348,7 +348,7 @@ def submit_job(
         r"""Submits a job to a cluster.
 
         Args:
-            request (google.cloud.dataproc_v1.types.SubmitJobRequest):
+            request (Union[google.cloud.dataproc_v1.types.SubmitJobRequest, dict]):
                 The request object. A request to submit a job.
             project_id (str):
                 Required. The ID of the Google Cloud
@@ -417,7 +417,7 @@ def submit_job(
 
     def submit_job_as_operation(
         self,
-        request: jobs.SubmitJobRequest = None,
+        request: Union[jobs.SubmitJobRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -429,7 +429,7 @@ def submit_job_as_operation(
         r"""Submits job to a cluster.
 
         Args:
-            request (google.cloud.dataproc_v1.types.SubmitJobRequest):
+            request (Union[google.cloud.dataproc_v1.types.SubmitJobRequest, dict]):
                 The request object. A request to submit a job.
             project_id (str):
                 Required. The ID of the Google Cloud
@@ -511,7 +511,7 @@ def submit_job_as_operation(
 
     def get_job(
         self,
-        request: jobs.GetJobRequest = None,
+        request: Union[jobs.GetJobRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -524,7 +524,7 @@ def get_job(
         project.
 
         Args:
-            request (google.cloud.dataproc_v1.types.GetJobRequest):
+            request (Union[google.cloud.dataproc_v1.types.GetJobRequest, dict]):
                 The request object. A request to get the resource
                 representation for a job in a project.
             project_id (str):
@@ -594,7 +594,7 @@ def get_job(
 
     def list_jobs(
         self,
-        request: jobs.ListJobsRequest = None,
+        request: Union[jobs.ListJobsRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -606,7 +606,7 @@ def list_jobs(
         r"""Lists regions/{region}/jobs in a project.
 
         Args:
-            request (google.cloud.dataproc_v1.types.ListJobsRequest):
+            request (Union[google.cloud.dataproc_v1.types.ListJobsRequest, dict]):
                 The request object. A request to list jobs in a project.
             project_id (str):
                 Required. The ID of the Google Cloud
@@ -702,7 +702,7 @@ def list_jobs(
 
     def update_job(
         self,
-        request: jobs.UpdateJobRequest = None,
+        request: Union[jobs.UpdateJobRequest, dict] = None,
         *,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
         timeout: float = None,
@@ -711,7 +711,7 @@ def update_job(
         r"""Updates a job in a project.
 
         Args:
-            request (google.cloud.dataproc_v1.types.UpdateJobRequest):
+            request (Union[google.cloud.dataproc_v1.types.UpdateJobRequest, dict]):
                 The request object. A request to update a job.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
                 should be retried.
@@ -743,7 +743,7 @@ def update_job(
 
     def cancel_job(
         self,
-        request: jobs.CancelJobRequest = None,
+        request: Union[jobs.CancelJobRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -759,7 +759,7 @@ def cancel_job(
         `regions/{region}/jobs.get <https://cloud.google.com/dataproc/docs/reference/rest/v1/projects.regions.jobs/get>`__.
 
         Args:
-            request (google.cloud.dataproc_v1.types.CancelJobRequest):
+            request (Union[google.cloud.dataproc_v1.types.CancelJobRequest, dict]):
                 The request object. A request to cancel a job.
             project_id (str):
                 Required. The ID of the Google Cloud
@@ -828,7 +828,7 @@ def cancel_job(
 
     def delete_job(
         self,
-        request: jobs.DeleteJobRequest = None,
+        request: Union[jobs.DeleteJobRequest, dict] = None,
         *,
         project_id: str = None,
         region: str = None,
@@ -841,7 +841,7 @@ def delete_job(
         delete fails, and the response returns ``FAILED_PRECONDITION``.
 
         Args:
-            request (google.cloud.dataproc_v1.types.DeleteJobRequest):
+            request (Union[google.cloud.dataproc_v1.types.DeleteJobRequest, dict]):
                 The request object. A request to delete a job.
             project_id (str):
                 Required. The ID of the Google Cloud
diff --git a/google/cloud/dataproc_v1/services/job_controller/transports/base.py b/google/cloud/dataproc_v1/services/job_controller/transports/base.py
index 306acbef..de2683cd 100644
--- a/google/cloud/dataproc_v1/services/job_controller/transports/base.py
+++ b/google/cloud/dataproc_v1/services/job_controller/transports/base.py
@@ -118,7 +118,7 @@ def __init__(
                 **scopes_kwargs, quota_project_id=quota_project_id
             )
 
-        # If the credentials is service account credentials, then always try to use self signed JWT.
+        # If the credentials are service account credentials, then always try to use self signed JWT.
         if (
             always_use_jwt_access
             and isinstance(credentials, service_account.Credentials)
diff --git a/google/cloud/dataproc_v1/services/job_controller/transports/grpc.py b/google/cloud/dataproc_v1/services/job_controller/transports/grpc.py
index 0215e3ba..e20d4103 100644
--- a/google/cloud/dataproc_v1/services/job_controller/transports/grpc.py
+++ b/google/cloud/dataproc_v1/services/job_controller/transports/grpc.py
@@ -83,16 +83,16 @@ def __init__(
             api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                 If provided, it overrides the ``host`` argument and tries to create
                 a mutual TLS channel with client SSL credentials from
-                ``client_cert_source`` or applicatin default SSL credentials.
+                ``client_cert_source`` or application default SSL credentials.
             client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 Deprecated. A callback to provide client SSL certificate bytes and
                 private key bytes, both in PEM format. It is ignored if
                 ``api_mtls_endpoint`` is None.
             ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
-                for grpc channel. It is ignored if ``channel`` is provided.
+                for the grpc channel. It is ignored if ``channel`` is provided.
             client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 A callback to provide client certificate bytes and private key bytes,
-                both in PEM format. It is used to configure mutual TLS channel. It is
+                both in PEM format. It is used to configure a mutual TLS channel. It is
                 ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
             quota_project_id (Optional[str]): An optional project to use for billing
                 and quota.
diff --git a/google/cloud/dataproc_v1/services/job_controller/transports/grpc_asyncio.py b/google/cloud/dataproc_v1/services/job_controller/transports/grpc_asyncio.py
index 5a58094b..59de6e20 100644
--- a/google/cloud/dataproc_v1/services/job_controller/transports/grpc_asyncio.py
+++ b/google/cloud/dataproc_v1/services/job_controller/transports/grpc_asyncio.py
@@ -130,16 +130,16 @@ def __init__(
             api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                 If provided, it overrides the ``host`` argument and tries to create
                 a mutual TLS channel with client SSL credentials from
-                ``client_cert_source`` or applicatin default SSL credentials.
+                ``client_cert_source`` or application default SSL credentials.
             client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 Deprecated. A callback to provide client SSL certificate bytes and
                 private key bytes, both in PEM format. It is ignored if
                 ``api_mtls_endpoint`` is None.
             ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
-                for grpc channel. It is ignored if ``channel`` is provided.
+                for the grpc channel. It is ignored if ``channel`` is provided.
             client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 A callback to provide client certificate bytes and private key bytes,
-                both in PEM format. It is used to configure mutual TLS channel. It is
+                both in PEM format. It is used to configure a mutual TLS channel. It is
                 ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
             quota_project_id (Optional[str]): An optional project to use for billing
                 and quota.
diff --git a/google/cloud/dataproc_v1/services/workflow_template_service/client.py b/google/cloud/dataproc_v1/services/workflow_template_service/client.py
index a66567e6..7725b1ad 100644
--- a/google/cloud/dataproc_v1/services/workflow_template_service/client.py
+++ b/google/cloud/dataproc_v1/services/workflow_template_service/client.py
@@ -17,7 +17,7 @@
 from distutils import util
 import os
 import re
-from typing import Callable, Dict, Optional, Sequence, Tuple, Type, Union
+from typing import Dict, Optional, Sequence, Tuple, Type, Union
 import pkg_resources
 
 from google.api_core import client_options as client_options_lib  # type: ignore
@@ -395,7 +395,7 @@ def __init__(
 
     def create_workflow_template(
         self,
-        request: workflow_templates.CreateWorkflowTemplateRequest = None,
+        request: Union[workflow_templates.CreateWorkflowTemplateRequest, dict] = None,
         *,
         parent: str = None,
         template: workflow_templates.WorkflowTemplate = None,
@@ -406,7 +406,7 @@ def create_workflow_template(
         r"""Creates new workflow template.
 
         Args:
-            request (google.cloud.dataproc_v1.types.CreateWorkflowTemplateRequest):
+            request (Union[google.cloud.dataproc_v1.types.CreateWorkflowTemplateRequest, dict]):
                 The request object. A request to create a workflow
                 template.
             parent (str):
@@ -486,7 +486,7 @@ def create_workflow_template(
 
     def get_workflow_template(
         self,
-        request: workflow_templates.GetWorkflowTemplateRequest = None,
+        request: Union[workflow_templates.GetWorkflowTemplateRequest, dict] = None,
         *,
         name: str = None,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
@@ -498,7 +498,7 @@ def get_workflow_template(
         specifying optional version parameter.
 
         Args:
-            request (google.cloud.dataproc_v1.types.GetWorkflowTemplateRequest):
+            request (Union[google.cloud.dataproc_v1.types.GetWorkflowTemplateRequest, dict]):
                 The request object. A request to fetch a workflow
                 template.
             name (str):
@@ -570,7 +570,9 @@ def get_workflow_template(
 
     def instantiate_workflow_template(
         self,
-        request: workflow_templates.InstantiateWorkflowTemplateRequest = None,
+        request: Union[
+            workflow_templates.InstantiateWorkflowTemplateRequest, dict
+        ] = None,
         *,
         name: str = None,
         parameters: Sequence[
@@ -603,7 +605,7 @@ def instantiate_workflow_template(
         be [Empty][google.protobuf.Empty].
 
         Args:
-            request (google.cloud.dataproc_v1.types.InstantiateWorkflowTemplateRequest):
+            request (Union[google.cloud.dataproc_v1.types.InstantiateWorkflowTemplateRequest, dict]):
                 The request object. A request to instantiate a workflow
                 template.
             name (str):
@@ -713,7 +715,9 @@ def instantiate_workflow_template(
 
     def instantiate_inline_workflow_template(
         self,
-        request: workflow_templates.InstantiateInlineWorkflowTemplateRequest = None,
+        request: Union[
+            workflow_templates.InstantiateInlineWorkflowTemplateRequest, dict
+        ] = None,
         *,
         parent: str = None,
         template: workflow_templates.WorkflowTemplate = None,
@@ -749,7 +753,7 @@ def instantiate_inline_workflow_template(
         be [Empty][google.protobuf.Empty].
 
         Args:
-            request (google.cloud.dataproc_v1.types.InstantiateInlineWorkflowTemplateRequest):
+            request (Union[google.cloud.dataproc_v1.types.InstantiateInlineWorkflowTemplateRequest, dict]):
                 The request object. A request to instantiate an inline
                 workflow template.
             parent (str):
@@ -858,7 +862,7 @@ def instantiate_inline_workflow_template(
 
     def update_workflow_template(
         self,
-        request: workflow_templates.UpdateWorkflowTemplateRequest = None,
+        request: Union[workflow_templates.UpdateWorkflowTemplateRequest, dict] = None,
         *,
         template: workflow_templates.WorkflowTemplate = None,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
@@ -870,7 +874,7 @@ def update_workflow_template(
         server version.
 
         Args:
-            request (google.cloud.dataproc_v1.types.UpdateWorkflowTemplateRequest):
+            request (Union[google.cloud.dataproc_v1.types.UpdateWorkflowTemplateRequest, dict]):
                 The request object. A request to update a workflow
                 template.
             template (google.cloud.dataproc_v1.types.WorkflowTemplate):
@@ -935,7 +939,7 @@ def update_workflow_template(
 
     def list_workflow_templates(
         self,
-        request: workflow_templates.ListWorkflowTemplatesRequest = None,
+        request: Union[workflow_templates.ListWorkflowTemplatesRequest, dict] = None,
         *,
         parent: str = None,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
@@ -946,7 +950,7 @@ def list_workflow_templates(
         the request.
 
         Args:
-            request (google.cloud.dataproc_v1.types.ListWorkflowTemplatesRequest):
+            request (Union[google.cloud.dataproc_v1.types.ListWorkflowTemplatesRequest, dict]):
                 The request object. A request to list workflow templates
                 in a project.
             parent (str):
@@ -1026,7 +1030,7 @@ def list_workflow_templates(
 
     def delete_workflow_template(
         self,
-        request: workflow_templates.DeleteWorkflowTemplateRequest = None,
+        request: Union[workflow_templates.DeleteWorkflowTemplateRequest, dict] = None,
         *,
         name: str = None,
         retry: retries.Retry = gapic_v1.method.DEFAULT,
@@ -1037,7 +1041,7 @@ def delete_workflow_template(
         rogress workflows.
 
         Args:
-            request (google.cloud.dataproc_v1.types.DeleteWorkflowTemplateRequest):
+            request (Union[google.cloud.dataproc_v1.types.DeleteWorkflowTemplateRequest, dict]):
                 The request object. A request to delete a workflow
                 template.
                 Currently started workflows will remain running.
diff --git a/google/cloud/dataproc_v1/services/workflow_template_service/transports/base.py b/google/cloud/dataproc_v1/services/workflow_template_service/transports/base.py
index 4c59aa97..6991402f 100644
--- a/google/cloud/dataproc_v1/services/workflow_template_service/transports/base.py
+++ b/google/cloud/dataproc_v1/services/workflow_template_service/transports/base.py
@@ -118,7 +118,7 @@ def __init__(
                 **scopes_kwargs, quota_project_id=quota_project_id
             )
 
-        # If the credentials is service account credentials, then always try to use self signed JWT.
+        # If the credentials are service account credentials, then always try to use self signed JWT.
         if (
             always_use_jwt_access
             and isinstance(credentials, service_account.Credentials)
diff --git a/google/cloud/dataproc_v1/services/workflow_template_service/transports/grpc.py b/google/cloud/dataproc_v1/services/workflow_template_service/transports/grpc.py
index 9dc3315b..d609525c 100644
--- a/google/cloud/dataproc_v1/services/workflow_template_service/transports/grpc.py
+++ b/google/cloud/dataproc_v1/services/workflow_template_service/transports/grpc.py
@@ -84,16 +84,16 @@ def __init__(
             api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                 If provided, it overrides the ``host`` argument and tries to create
                 a mutual TLS channel with client SSL credentials from
-                ``client_cert_source`` or applicatin default SSL credentials.
+                ``client_cert_source`` or application default SSL credentials.
             client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 Deprecated. A callback to provide client SSL certificate bytes and
                 private key bytes, both in PEM format. It is ignored if
                 ``api_mtls_endpoint`` is None.
             ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
-                for grpc channel. It is ignored if ``channel`` is provided.
+                for the grpc channel. It is ignored if ``channel`` is provided.
             client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 A callback to provide client certificate bytes and private key bytes,
-                both in PEM format. It is used to configure mutual TLS channel. It is
+                both in PEM format. It is used to configure a mutual TLS channel. It is
                 ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
             quota_project_id (Optional[str]): An optional project to use for billing
                 and quota.
diff --git a/google/cloud/dataproc_v1/services/workflow_template_service/transports/grpc_asyncio.py b/google/cloud/dataproc_v1/services/workflow_template_service/transports/grpc_asyncio.py
index 5d4b23c7..c9a93367 100644
--- a/google/cloud/dataproc_v1/services/workflow_template_service/transports/grpc_asyncio.py
+++ b/google/cloud/dataproc_v1/services/workflow_template_service/transports/grpc_asyncio.py
@@ -131,16 +131,16 @@ def __init__(
             api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
                 If provided, it overrides the ``host`` argument and tries to create
                 a mutual TLS channel with client SSL credentials from
-                ``client_cert_source`` or applicatin default SSL credentials.
+                ``client_cert_source`` or application default SSL credentials.
             client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 Deprecated. A callback to provide client SSL certificate bytes and
                 private key bytes, both in PEM format. It is ignored if
                 ``api_mtls_endpoint`` is None.
             ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
-                for grpc channel. It is ignored if ``channel`` is provided.
+                for the grpc channel. It is ignored if ``channel`` is provided.
             client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
                 A callback to provide client certificate bytes and private key bytes,
-                both in PEM format. It is used to configure mutual TLS channel. It is
+                both in PEM format. It is used to configure a mutual TLS channel. It is
                 ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
             quota_project_id (Optional[str]): An optional project to use for billing
                 and quota.
diff --git a/scripts/fixup_dataproc_v1_keywords.py b/scripts/fixup_dataproc_v1_keywords.py
index a976d109..c5d79a7f 100644
--- a/scripts/fixup_dataproc_v1_keywords.py
+++ b/scripts/fixup_dataproc_v1_keywords.py
@@ -39,33 +39,33 @@ def partition(
 class dataprocCallTransformer(cst.CSTTransformer):
     CTRL_PARAMS: Tuple[str] = ('retry', 'timeout', 'metadata')
     METHOD_TO_PARAMS: Dict[str, Tuple[str]] = {
-          'cancel_job': ('project_id', 'region', 'job_id', ),
-          'create_autoscaling_policy': ('parent', 'policy', ),
-          'create_cluster': ('project_id', 'region', 'cluster', 'request_id', ),
-          'create_workflow_template': ('parent', 'template', ),
-          'delete_autoscaling_policy': ('name', ),
-          'delete_cluster': ('project_id', 'region', 'cluster_name', 'cluster_uuid', 'request_id', ),
-          'delete_job': ('project_id', 'region', 'job_id', ),
-          'delete_workflow_template': ('name', 'version', ),
-          'diagnose_cluster': ('project_id', 'region', 'cluster_name', ),
-          'get_autoscaling_policy': ('name', ),
-          'get_cluster': ('project_id', 'region', 'cluster_name', ),
-          'get_job': ('project_id', 'region', 'job_id', ),
-          'get_workflow_template': ('name', 'version', ),
-          'instantiate_inline_workflow_template': ('parent', 'template', 'request_id', ),
-          'instantiate_workflow_template': ('name', 'version', 'request_id', 'parameters', ),
-          'list_autoscaling_policies': ('parent', 'page_size', 'page_token', ),
-          'list_clusters': ('project_id', 'region', 'filter', 'page_size', 'page_token', ),
-          'list_jobs': ('project_id', 'region', 'page_size', 'page_token', 'cluster_name', 'job_state_matcher', 'filter', ),
-          'list_workflow_templates': ('parent', 'page_size', 'page_token', ),
-          'start_cluster': ('project_id', 'region', 'cluster_name', 'cluster_uuid', 'request_id', ),
-          'stop_cluster': ('project_id', 'region', 'cluster_name', 'cluster_uuid', 'request_id', ),
-          'submit_job': ('project_id', 'region', 'job', 'request_id', ),
-          'submit_job_as_operation': ('project_id', 'region', 'job', 'request_id', ),
-          'update_autoscaling_policy': ('policy', ),
-          'update_cluster': ('project_id', 'region', 'cluster_name', 'cluster', 'update_mask', 'graceful_decommission_timeout', 'request_id', ),
-          'update_job': ('project_id', 'region', 'job_id', 'job', 'update_mask', ),
-          'update_workflow_template': ('template', ),
+        'cancel_job': ('project_id', 'region', 'job_id', ),
+        'create_autoscaling_policy': ('parent', 'policy', ),
+        'create_cluster': ('project_id', 'region', 'cluster', 'request_id', ),
+        'create_workflow_template': ('parent', 'template', ),
+        'delete_autoscaling_policy': ('name', ),
+        'delete_cluster': ('project_id', 'region', 'cluster_name', 'cluster_uuid', 'request_id', ),
+        'delete_job': ('project_id', 'region', 'job_id', ),
+        'delete_workflow_template': ('name', 'version', ),
+        'diagnose_cluster': ('project_id', 'region', 'cluster_name', ),
+        'get_autoscaling_policy': ('name', ),
+        'get_cluster': ('project_id', 'region', 'cluster_name', ),
+        'get_job': ('project_id', 'region', 'job_id', ),
+        'get_workflow_template': ('name', 'version', ),
+        'instantiate_inline_workflow_template': ('parent', 'template', 'request_id', ),
+        'instantiate_workflow_template': ('name', 'version', 'request_id', 'parameters', ),
+        'list_autoscaling_policies': ('parent', 'page_size', 'page_token', ),
+        'list_clusters': ('project_id', 'region', 'filter', 'page_size', 'page_token', ),
+        'list_jobs': ('project_id', 'region', 'page_size', 'page_token', 'cluster_name', 'job_state_matcher', 'filter', ),
+        'list_workflow_templates': ('parent', 'page_size', 'page_token', ),
+        'start_cluster': ('project_id', 'region', 'cluster_name', 'cluster_uuid', 'request_id', ),
+        'stop_cluster': ('project_id', 'region', 'cluster_name', 'cluster_uuid', 'request_id', ),
+        'submit_job': ('project_id', 'region', 'job', 'request_id', ),
+        'submit_job_as_operation': ('project_id', 'region', 'job', 'request_id', ),
+        'update_autoscaling_policy': ('policy', ),
+        'update_cluster': ('project_id', 'region', 'cluster_name', 'cluster', 'update_mask', 'graceful_decommission_timeout', 'request_id', ),
+        'update_job': ('project_id', 'region', 'job_id', 'job', 'update_mask', ),
+        'update_workflow_template': ('template', ),
     }
 
     def leave_Call(self, original: cst.Call, updated: cst.Call) -> cst.CSTNode:
@@ -84,7 +84,7 @@ def leave_Call(self, original: cst.Call, updated: cst.Call) -> cst.CSTNode:
             return updated
 
         kwargs, ctrl_kwargs = partition(
-            lambda a: not a.keyword.value in self.CTRL_PARAMS,
+            lambda a: a.keyword.value not in self.CTRL_PARAMS,
             kwargs
         )