diff --git a/google/cloud/networkconnectivity_v1/services/hub_service/async_client.py b/google/cloud/networkconnectivity_v1/services/hub_service/async_client.py
index 0a3c3a5..27fc527 100644
--- a/google/cloud/networkconnectivity_v1/services/hub_service/async_client.py
+++ b/google/cloud/networkconnectivity_v1/services/hub_service/async_client.py
@@ -296,9 +296,9 @@ async def get_hub(
 
         Returns:
             google.cloud.networkconnectivity_v1.types.Hub:
-                A hub is essentially a collection of
-                spokes. A single hub can contain spokes
-                from multiple regions. However, all of a
+                A hub is a collection of spokes. A
+                single hub can contain spokes from
+                multiple regions. However, all of a
                 hub's spokes must be associated with
                 resources that reside in the same VPC
                 network.
@@ -372,7 +372,7 @@ async def create_hub(
                 on the ``request`` instance; if ``request`` is provided, this
                 should not be set.
             hub_id (:class:`str`):
-                Optional. A unique identifier for the
+                Required. A unique identifier for the
                 hub.
 
                 This corresponds to the ``hub_id`` field
@@ -388,10 +388,10 @@ async def create_hub(
             google.api_core.operation_async.AsyncOperation:
                 An object representing a long-running operation.
 
-                The result type for the operation will be :class:`google.cloud.networkconnectivity_v1.types.Hub` A hub is essentially a collection of spokes. A single hub can contain spokes
-                   from multiple regions. However, all of a hub's spokes
-                   must be associated with resources that reside in the
-                   same VPC network.
+                The result type for the operation will be :class:`google.cloud.networkconnectivity_v1.types.Hub` A hub is a collection of spokes. A single hub can contain spokes from
+                   multiple regions. However, all of a hub's spokes must
+                   be associated with resources that reside in the same
+                   VPC network.
 
         """
         # Create or coerce a protobuf request object.
@@ -489,10 +489,10 @@ async def update_hub(
             google.api_core.operation_async.AsyncOperation:
                 An object representing a long-running operation.
 
-                The result type for the operation will be :class:`google.cloud.networkconnectivity_v1.types.Hub` A hub is essentially a collection of spokes. A single hub can contain spokes
-                   from multiple regions. However, all of a hub's spokes
-                   must be associated with resources that reside in the
-                   same VPC network.
+                The result type for the operation will be :class:`google.cloud.networkconnectivity_v1.types.Hub` A hub is a collection of spokes. A single hub can contain spokes from
+                   multiple regions. However, all of a hub's spokes must
+                   be associated with resources that reside in the same
+                   VPC network.
 
         """
         # Create or coerce a protobuf request object.
@@ -823,7 +823,7 @@ async def create_spoke(
                 on the ``request`` instance; if ``request`` is provided, this
                 should not be set.
             spoke_id (:class:`str`):
-                Optional. Unique id for the spoke to
+                Required. Unique id for the spoke to
                 create.
 
                 This corresponds to the ``spoke_id`` field
diff --git a/google/cloud/networkconnectivity_v1/services/hub_service/client.py b/google/cloud/networkconnectivity_v1/services/hub_service/client.py
index ea5ee42..6b858b2 100644
--- a/google/cloud/networkconnectivity_v1/services/hub_service/client.py
+++ b/google/cloud/networkconnectivity_v1/services/hub_service/client.py
@@ -558,9 +558,9 @@ def get_hub(
 
         Returns:
             google.cloud.networkconnectivity_v1.types.Hub:
-                A hub is essentially a collection of
-                spokes. A single hub can contain spokes
-                from multiple regions. However, all of a
+                A hub is a collection of spokes. A
+                single hub can contain spokes from
+                multiple regions. However, all of a
                 hub's spokes must be associated with
                 resources that reside in the same VPC
                 network.
@@ -634,7 +634,7 @@ def create_hub(
                 on the ``request`` instance; if ``request`` is provided, this
                 should not be set.
             hub_id (str):
-                Optional. A unique identifier for the
+                Required. A unique identifier for the
                 hub.
 
                 This corresponds to the ``hub_id`` field
@@ -650,10 +650,10 @@ def create_hub(
             google.api_core.operation.Operation:
                 An object representing a long-running operation.
 
-                The result type for the operation will be :class:`google.cloud.networkconnectivity_v1.types.Hub` A hub is essentially a collection of spokes. A single hub can contain spokes
-                   from multiple regions. However, all of a hub's spokes
-                   must be associated with resources that reside in the
-                   same VPC network.
+                The result type for the operation will be :class:`google.cloud.networkconnectivity_v1.types.Hub` A hub is a collection of spokes. A single hub can contain spokes from
+                   multiple regions. However, all of a hub's spokes must
+                   be associated with resources that reside in the same
+                   VPC network.
 
         """
         # Create or coerce a protobuf request object.
@@ -751,10 +751,10 @@ def update_hub(
             google.api_core.operation.Operation:
                 An object representing a long-running operation.
 
-                The result type for the operation will be :class:`google.cloud.networkconnectivity_v1.types.Hub` A hub is essentially a collection of spokes. A single hub can contain spokes
-                   from multiple regions. However, all of a hub's spokes
-                   must be associated with resources that reside in the
-                   same VPC network.
+                The result type for the operation will be :class:`google.cloud.networkconnectivity_v1.types.Hub` A hub is a collection of spokes. A single hub can contain spokes from
+                   multiple regions. However, all of a hub's spokes must
+                   be associated with resources that reside in the same
+                   VPC network.
 
         """
         # Create or coerce a protobuf request object.
@@ -1085,7 +1085,7 @@ def create_spoke(
                 on the ``request`` instance; if ``request`` is provided, this
                 should not be set.
             spoke_id (str):
-                Optional. Unique id for the spoke to
+                Required. Unique id for the spoke to
                 create.
 
                 This corresponds to the ``spoke_id`` field
diff --git a/google/cloud/networkconnectivity_v1/types/hub.py b/google/cloud/networkconnectivity_v1/types/hub.py
index 98c0e47..fdca928 100644
--- a/google/cloud/networkconnectivity_v1/types/hub.py
+++ b/google/cloud/networkconnectivity_v1/types/hub.py
@@ -57,10 +57,10 @@ class State(proto.Enum):
 
 
 class Hub(proto.Message):
-    r"""A hub is essentially a collection of spokes. A single hub can
-    contain spokes from multiple regions. However, all of a hub's
-    spokes must be associated with resources that reside in the same
-    VPC network.
+    r"""A hub is a collection of spokes. A single hub can contain
+    spokes from multiple regions. However, all of a hub's spokes
+    must be associated with resources that reside in the same VPC
+    network.
 
     Attributes:
         name (str):
@@ -109,12 +109,12 @@ class Hub(proto.Message):
 
 
 class RoutingVPC(proto.Message):
-    r"""RoutingsVPC contains information about a VPC network that is
+    r"""RoutingVPC contains information about the VPC network that is
     associated with a hub's spokes.
 
     Attributes:
         uri (str):
-            The URI of a VPC network.
+            The URI of the VPC network.
     """
 
     uri = proto.Field(proto.STRING, number=1,)
@@ -148,8 +148,8 @@ class Spoke(proto.Message):
         description (str):
             An optional description of the spoke.
         hub (str):
-            Immutable. The URI of the hub that this spoke
-            is attached to.
+            Immutable. The name of the hub that this
+            spoke is attached to.
         linked_vpn_tunnels (google.cloud.networkconnectivity_v1.types.LinkedVpnTunnels):
             VPN tunnels that are associated with the
             spoke.
@@ -263,7 +263,7 @@ class CreateHubRequest(proto.Message):
         parent (str):
             Required. The parent resource.
         hub_id (str):
-            Optional. A unique identifier for the hub.
+            Required. A unique identifier for the hub.
         hub (google.cloud.networkconnectivity_v1.types.Hub):
             Required. The initial values for a new hub.
         request_id (str):
@@ -442,7 +442,7 @@ class CreateSpokeRequest(proto.Message):
         parent (str):
             Required. The parent resource.
         spoke_id (str):
-            Optional. Unique id for the spoke to create.
+            Required. Unique id for the spoke to create.
         spoke (google.cloud.networkconnectivity_v1.types.Spoke):
             Required. The initial values for a new spoke.
         request_id (str):
diff --git a/scripts/fixup_networkconnectivity_v1_keywords.py b/scripts/fixup_networkconnectivity_v1_keywords.py
index 067b307..7cc2a79 100644
--- a/scripts/fixup_networkconnectivity_v1_keywords.py
+++ b/scripts/fixup_networkconnectivity_v1_keywords.py
@@ -39,8 +39,8 @@ def partition(
 class networkconnectivityCallTransformer(cst.CSTTransformer):
     CTRL_PARAMS: Tuple[str] = ('retry', 'timeout', 'metadata')
     METHOD_TO_PARAMS: Dict[str, Tuple[str]] = {
-        'create_hub': ('parent', 'hub', 'hub_id', 'request_id', ),
-        'create_spoke': ('parent', 'spoke', 'spoke_id', 'request_id', ),
+        'create_hub': ('parent', 'hub_id', 'hub', 'request_id', ),
+        'create_spoke': ('parent', 'spoke_id', 'spoke', 'request_id', ),
         'delete_hub': ('name', 'request_id', ),
         'delete_spoke': ('name', 'request_id', ),
         'get_hub': ('name', ),