diff --git a/tempest/api/identity/admin/v2/test_roles.py b/tempest/api/identity/admin/v2/test_roles.py
index e547bdd..3f3d16e 100644
--- a/tempest/api/identity/admin/v2/test_roles.py
+++ b/tempest/api/identity/admin/v2/test_roles.py
@@ -27,7 +27,7 @@
         super(RolesTestJSON, cls).resource_setup()
         for _ in moves.xrange(5):
             role_name = data_utils.rand_name(name='role')
-            role = cls.roles_client.create_role(role_name)['role']
+            role = cls.roles_client.create_role(name=role_name)['role']
             cls.data.roles.append(role)
 
     def _get_role_params(self):
@@ -57,7 +57,7 @@
     def test_role_create_delete(self):
         """Role should be created, verified, and deleted."""
         role_name = data_utils.rand_name(name='role-test')
-        body = self.roles_client.create_role(role_name)['role']
+        body = self.roles_client.create_role(name=role_name)['role']
         self.assertEqual(role_name, body['name'])
 
         body = self.roles_client.list_roles()['roles']
diff --git a/tempest/api/identity/admin/v2/test_roles_negative.py b/tempest/api/identity/admin/v2/test_roles_negative.py
index a57163d..c9af7c6 100644
--- a/tempest/api/identity/admin/v2/test_roles_negative.py
+++ b/tempest/api/identity/admin/v2/test_roles_negative.py
@@ -53,7 +53,7 @@
     def test_role_create_blank_name(self):
         # Should not be able to create a role with a blank name
         self.assertRaises(lib_exc.BadRequest, self.roles_client.create_role,
-                          '')
+                          name='')
 
     @test.attr(type=['negative'])
     @test.idempotent_id('585c8998-a8a4-4641-a5dd-abef7a8ced00')
@@ -61,7 +61,8 @@
         # Non-administrator user should not be able to create role
         role_name = data_utils.rand_name(name='role')
         self.assertRaises(lib_exc.Forbidden,
-                          self.non_admin_roles_client.create_role, role_name)
+                          self.non_admin_roles_client.create_role,
+                          name=role_name)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('a7edd17a-e34a-4aab-8bb7-fa6f498645b8')
@@ -71,7 +72,7 @@
         self.client.delete_token(token)
         role_name = data_utils.rand_name(name='role')
         self.assertRaises(lib_exc.Unauthorized,
-                          self.roles_client.create_role, role_name)
+                          self.roles_client.create_role, name=role_name)
         self.client.auth_provider.clear_auth()
 
     @test.attr(type=['negative'])
@@ -79,18 +80,18 @@
     def test_role_create_duplicate(self):
         # Role names should be unique
         role_name = data_utils.rand_name(name='role-dup')
-        body = self.roles_client.create_role(role_name)['role']
+        body = self.roles_client.create_role(name=role_name)['role']
         role1_id = body.get('id')
         self.addCleanup(self.roles_client.delete_role, role1_id)
         self.assertRaises(lib_exc.Conflict, self.roles_client.create_role,
-                          role_name)
+                          name=role_name)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('15347635-b5b1-4a87-a280-deb2bd6d865e')
     def test_delete_role_by_unauthorized_user(self):
         # Non-administrator user should not be able to delete role
         role_name = data_utils.rand_name(name='role')
-        body = self.roles_client.create_role(role_name)['role']
+        body = self.roles_client.create_role(name=role_name)['role']
         self.data.roles.append(body)
         role_id = body.get('id')
         self.assertRaises(lib_exc.Forbidden,
@@ -101,7 +102,7 @@
     def test_delete_role_request_without_token(self):
         # Request to delete role without a valid token should fail
         role_name = data_utils.rand_name(name='role')
-        body = self.roles_client.create_role(role_name)['role']
+        body = self.roles_client.create_role(name=role_name)['role']
         self.data.roles.append(body)
         role_id = body.get('id')
         token = self.client.auth_provider.get_token()
diff --git a/tempest/api/identity/admin/v2/test_tokens.py b/tempest/api/identity/admin/v2/test_tokens.py
index e752b02..fdb5a5a 100644
--- a/tempest/api/identity/admin/v2/test_tokens.py
+++ b/tempest/api/identity/admin/v2/test_tokens.py
@@ -77,7 +77,7 @@
 
         # Create a role
         role_name = data_utils.rand_name(name='role')
-        role = self.roles_client.create_role(role_name)['role']
+        role = self.roles_client.create_role(name=role_name)['role']
         self.data.roles.append(role)
 
         # Grant the user the role on the tenants.
diff --git a/tempest/api/identity/admin/v2/test_users.py b/tempest/api/identity/admin/v2/test_users.py
index 2e9714e..d886524 100644
--- a/tempest/api/identity/admin/v2/test_users.py
+++ b/tempest/api/identity/admin/v2/test_users.py
@@ -202,7 +202,7 @@
         # Updating the user with new password
         new_pass = data_utils.rand_password()
         update_user = self.client.update_user_password(
-            self.data.user['id'], new_pass)['user']
+            self.data.user['id'], password=new_pass)['user']
         self.assertEqual(update_user['id'], self.data.user['id'])
 
         # Validate the updated password
diff --git a/tempest/api/identity/admin/v3/test_policies.py b/tempest/api/identity/admin/v3/test_policies.py
index f38d25d..3b5e5d4 100644
--- a/tempest/api/identity/admin/v3/test_policies.py
+++ b/tempest/api/identity/admin/v3/test_policies.py
@@ -21,7 +21,7 @@
 class PoliciesTestJSON(base.BaseIdentityV3AdminTest):
 
     def _delete_policy(self, policy_id):
-        self.policy_client.delete_policy(policy_id)
+        self.policies_client.delete_policy(policy_id)
 
     @test.idempotent_id('1a0ad286-2d06-4123-ab0d-728893a76201')
     def test_list_policies(self):
@@ -31,13 +31,13 @@
         for _ in range(3):
             blob = data_utils.rand_name('BlobName')
             policy_type = data_utils.rand_name('PolicyType')
-            policy = self.policy_client.create_policy(
+            policy = self.policies_client.create_policy(
                 blob=blob, type=policy_type)['policy']
             # Delete the Policy at the end of this method
             self.addCleanup(self._delete_policy, policy['id'])
             policy_ids.append(policy['id'])
         # List and Verify Policies
-        body = self.policy_client.list_policies()['policies']
+        body = self.policies_client.list_policies()['policies']
         for p in body:
             fetched_ids.append(p['id'])
         missing_pols = [p for p in policy_ids if p not in fetched_ids]
@@ -49,8 +49,8 @@
         # Test to update policy
         blob = data_utils.rand_name('BlobName')
         policy_type = data_utils.rand_name('PolicyType')
-        policy = self.policy_client.create_policy(blob=blob,
-                                                  type=policy_type)['policy']
+        policy = self.policies_client.create_policy(blob=blob,
+                                                    type=policy_type)['policy']
         self.addCleanup(self._delete_policy, policy['id'])
         self.assertIn('id', policy)
         self.assertIn('type', policy)
@@ -60,11 +60,12 @@
         self.assertEqual(policy_type, policy['type'])
         # Update policy
         update_type = data_utils.rand_name('UpdatedPolicyType')
-        data = self.policy_client.update_policy(
+        data = self.policies_client.update_policy(
             policy['id'], type=update_type)['policy']
         self.assertIn('type', data)
         # Assertion for updated value with fetched value
-        fetched_policy = self.policy_client.show_policy(policy['id'])['policy']
+        fetched_policy = self.policies_client.show_policy(
+            policy['id'])['policy']
         self.assertIn('id', fetched_policy)
         self.assertIn('blob', fetched_policy)
         self.assertIn('type', fetched_policy)
diff --git a/tempest/api/identity/admin/v3/test_regions.py b/tempest/api/identity/admin/v3/test_regions.py
index ec1b12e..8bba3cb 100644
--- a/tempest/api/identity/admin/v3/test_regions.py
+++ b/tempest/api/identity/admin/v3/test_regions.py
@@ -25,7 +25,7 @@
     @classmethod
     def setup_clients(cls):
         super(RegionsTestJSON, cls).setup_clients()
-        cls.client = cls.region_client
+        cls.client = cls.regions_client
 
     @classmethod
     def resource_setup(cls):
diff --git a/tempest/api/identity/admin/v3/test_roles.py b/tempest/api/identity/admin/v3/test_roles.py
index f194d9c..ae714aa 100644
--- a/tempest/api/identity/admin/v3/test_roles.py
+++ b/tempest/api/identity/admin/v3/test_roles.py
@@ -25,7 +25,7 @@
         super(RolesV3TestJSON, cls).resource_setup()
         for _ in range(3):
             role_name = data_utils.rand_name(name='role')
-            role = cls.client.create_role(role_name)['role']
+            role = cls.client.create_role(name=role_name)['role']
             cls.data.v3_roles.append(role)
         cls.fetched_role_ids = list()
         u_name = data_utils.rand_name('user')
@@ -47,7 +47,7 @@
             email=u_email, project_id=cls.project['id'],
             domain_id=cls.domain['id'])['user']
         cls.role = cls.client.create_role(
-            data_utils.rand_name('Role'))['role']
+            name=data_utils.rand_name('Role'))['role']
 
     @classmethod
     def resource_cleanup(cls):
@@ -69,13 +69,14 @@
     @test.idempotent_id('18afc6c0-46cf-4911-824e-9989cc056c3a')
     def test_role_create_update_get_list(self):
         r_name = data_utils.rand_name('Role')
-        role = self.client.create_role(r_name)['role']
+        role = self.client.create_role(name=r_name)['role']
         self.addCleanup(self.client.delete_role, role['id'])
         self.assertIn('name', role)
         self.assertEqual(role['name'], r_name)
 
         new_name = data_utils.rand_name('NewRole')
-        updated_role = self.client.update_role(new_name, role['id'])['role']
+        updated_role = self.client.update_role(role['id'],
+                                               name=new_name)['role']
         self.assertIn('name', updated_role)
         self.assertIn('id', updated_role)
         self.assertIn('links', updated_role)
diff --git a/tempest/api/identity/admin/v3/test_tokens.py b/tempest/api/identity/admin/v3/test_tokens.py
index f5b20d5..b1446cf 100644
--- a/tempest/api/identity/admin/v3/test_tokens.py
+++ b/tempest/api/identity/admin/v3/test_tokens.py
@@ -76,7 +76,7 @@
 
         # Create a role
         role_name = data_utils.rand_name(name='role')
-        role = self.client.create_role(role_name)['role']
+        role = self.client.create_role(name=role_name)['role']
         self.addCleanup(self.client.delete_role, role['id'])
 
         # Grant the user the role on both projects.
diff --git a/tempest/api/identity/admin/v3/test_trusts.py b/tempest/api/identity/admin/v3/test_trusts.py
index bf7ad71..85961b4 100644
--- a/tempest/api/identity/admin/v3/test_trusts.py
+++ b/tempest/api/identity/admin/v3/test_trusts.py
@@ -69,10 +69,10 @@
         self.delegated_role = data_utils.rand_name('DelegatedRole')
         self.not_delegated_role = data_utils.rand_name('NotDelegatedRole')
 
-        role = self.client.create_role(self.delegated_role)['role']
+        role = self.client.create_role(name=self.delegated_role)['role']
         self.delegated_role_id = role['id']
 
-        role = self.client.create_role(self.not_delegated_role)['role']
+        role = self.client.create_role(name=self.not_delegated_role)['role']
         self.not_delegated_role_id = role['id']
 
         # Assign roles to trustor
diff --git a/tempest/api/identity/admin/v3/test_users.py b/tempest/api/identity/admin/v3/test_users.py
index 6dbd443..a402b3f 100644
--- a/tempest/api/identity/admin/v3/test_users.py
+++ b/tempest/api/identity/admin/v3/test_users.py
@@ -117,7 +117,7 @@
         self.addCleanup(self.client.delete_user, user_body['id'])
         # Creating Role
         role_body = self.client.create_role(
-            data_utils.rand_name('role'))['role']
+            name=data_utils.rand_name('role'))['role']
         # Delete the Role at the end of this method
         self.addCleanup(self.client.delete_role, role_body['id'])
 
diff --git a/tempest/api/identity/base.py b/tempest/api/identity/base.py
index d98e3b1..d68a204 100644
--- a/tempest/api/identity/base.py
+++ b/tempest/api/identity/base.py
@@ -30,7 +30,7 @@
     @classmethod
     def disable_user(cls, user_name):
         user = cls.get_user_by_name(user_name)
-        cls.client.enable_disable_user(user['id'], False)
+        cls.client.enable_disable_user(user['id'], enabled=False)
 
     @classmethod
     def disable_tenant(cls, tenant_name):
@@ -143,9 +143,9 @@
         cls.client = cls.os_adm.identity_v3_client
         cls.token = cls.os_adm.token_v3_client
         cls.endpoints_client = cls.os_adm.endpoints_client
-        cls.region_client = cls.os_adm.region_client
+        cls.regions_client = cls.os_adm.regions_client
         cls.services_client = cls.os_adm.identity_services_client
-        cls.policy_client = cls.os_adm.policy_client
+        cls.policies_client = cls.os_adm.policies_client
         cls.creds_client = cls.os_adm.credentials_client
         cls.groups_client = cls.os_adm.groups_client
 
@@ -237,7 +237,8 @@
         def setup_test_role(self):
             """Set up a test role."""
             self.test_role = data_utils.rand_name('role')
-            self.role = self.roles_client.create_role(self.test_role)['role']
+            self.role = self.roles_client.create_role(
+                name=self.test_role)['role']
             self.roles.append(self.role)
 
         def setup_test_v3_user(self):
@@ -265,7 +266,7 @@
         def setup_test_v3_role(self):
             """Set up a test v3 role."""
             self.test_role = data_utils.rand_name('role')
-            self.v3_role = self.client.create_role(self.test_role)['role']
+            self.v3_role = self.client.create_role(name=self.test_role)['role']
             self.v3_roles.append(self.v3_role)
 
         def setup_test_domain(self):
diff --git a/tempest/api/identity/v2/test_users.py b/tempest/api/identity/v2/test_users.py
index 5f2a8c4..98a2e68 100644
--- a/tempest/api/identity/v2/test_users.py
+++ b/tempest/api/identity/v2/test_users.py
@@ -51,14 +51,10 @@
         # to change password back. important for allow_tenant_isolation = false
         self.addCleanup(
             self.non_admin_client_for_cleanup.update_user_own_password,
-            user_id=user_id,
-            new_pass=old_pass,
-            old_pass=new_pass)
-
+            user_id, original_password=new_pass, password=old_pass)
         # user updates own password
         self.non_admin_client.update_user_own_password(
-            user_id=user_id, new_pass=new_pass, old_pass=old_pass)
-
+            user_id, password=new_pass, original_password=old_pass)
         # TODO(lbragstad): Sleeping after the response status has been checked
         # and the body loaded as JSON allows requests to fail-fast. The sleep
         # is necessary because keystone will err on the side of security and
diff --git a/tempest/clients.py b/tempest/clients.py
index 393815c..54218d6 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -99,10 +99,10 @@
 from tempest.services.identity.v3.json.groups_client import \
     GroupsClient as GroupsV3Client
 from tempest.services.identity.v3.json.identity_client import IdentityV3Client
-from tempest.services.identity.v3.json.policy_client import \
-    PolicyClient as PolicyV3Client
-from tempest.services.identity.v3.json.region_client import \
-    RegionClient as RegionV3Client
+from tempest.services.identity.v3.json.policies_client import \
+    PoliciesClient as PoliciesV3Client
+from tempest.services.identity.v3.json.regions_client import \
+    RegionsClient as RegionsV3Client
 from tempest.services.identity.v3.json.services_client import \
     ServicesClient as IdentityServicesV3Client
 from tempest.services.image.v1.json.images_client import ImagesClient
@@ -479,8 +479,9 @@
                                                  **params_v3)
         self.identity_services_client = IdentityServicesV3Client(
             self.auth_provider, **params_v3)
-        self.policy_client = PolicyV3Client(self.auth_provider, **params_v3)
-        self.region_client = RegionV3Client(self.auth_provider, **params_v3)
+        self.policies_client = PoliciesV3Client(self.auth_provider,
+                                                **params_v3)
+        self.regions_client = RegionsV3Client(self.auth_provider, **params_v3)
         self.credentials_client = CredentialsV3Client(self.auth_provider,
                                                       **params_v3)
         self.groups_client = GroupsV3Client(self.auth_provider, **params_v3)
diff --git a/tempest/common/cred_client.py b/tempest/common/cred_client.py
index a33732e..5d15988 100644
--- a/tempest/common/cred_client.py
+++ b/tempest/common/cred_client.py
@@ -61,7 +61,7 @@
 
     def create_user_role(self, role_name):
         if not self._check_role_exists(role_name):
-            self.roles_client.create_role(role_name)
+            self.roles_client.create_role(name=role_name)
 
     def assign_user_role(self, user, project, role_name):
         role = self._check_role_exists(role_name)
diff --git a/tempest/services/identity/v2/json/identity_client.py b/tempest/services/identity/v2/json/identity_client.py
index 54596be..ff6c838 100644
--- a/tempest/services/identity/v2/json/identity_client.py
+++ b/tempest/services/identity/v2/json/identity_client.py
@@ -71,12 +71,17 @@
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
 
-    def enable_disable_user(self, user_id, enabled):
-        """Enables or disables a user."""
-        put_body = {
-            'enabled': enabled
-        }
-        put_body = json.dumps({'user': put_body})
+    def enable_disable_user(self, user_id, **kwargs):
+        """Enables or disables a user.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-identity-v2-ext.html#enableUser
+        """
+        # NOTE: The URL (users/<id>/enabled) is different from the api-site
+        # one (users/<id>/OS-KSADM/enabled) , but they are the same API
+        # because of the fact that in keystone/contrib/admin_crud/core.py
+        # both api use same action='set_user_enabled'
+        put_body = json.dumps({'user': kwargs})
         resp, body = self.put('users/%s/enabled' % user_id, put_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
@@ -159,25 +164,28 @@
         self.expected_success(204, resp.status)
         return service_client.ResponseBody(resp, body)
 
-    def update_user_password(self, user_id, new_pass):
+    def update_user_password(self, user_id, **kwargs):
         """Update User Password."""
-        put_body = {
-            'password': new_pass,
-            'id': user_id
-        }
-        put_body = json.dumps({'user': put_body})
+        # TODO(piyush): Current api-site doesn't contain this API description.
+        # After fixing the api-site, we need to fix here also for putting the
+        # link to api-site.
+        # LP: https://bugs.launchpad.net/openstack-api-site/+bug/1524147
+        put_body = json.dumps({'user': kwargs})
         resp, body = self.put('users/%s/OS-KSADM/password' % user_id, put_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
 
-    def update_user_own_password(self, user_id, new_pass, old_pass):
+    def update_user_own_password(self, user_id, **kwargs):
         """User updates own password"""
-        patch_body = {
-            "password": new_pass,
-            "original_password": old_pass
-        }
-        patch_body = json.dumps({'user': patch_body})
+        # TODO(piyush): Current api-site doesn't contain this API description.
+        # After fixing the api-site, we need to fix here also for putting the
+        # link to api-site.
+        # LP: https://bugs.launchpad.net/openstack-api-site/+bug/1524153
+        # NOTE: This API is used for updating user password by itself.
+        # Ref: http://lists.openstack.org/pipermail/openstack-dev/2015-December
+        #      /081803.html
+        patch_body = json.dumps({'user': kwargs})
         resp, body = self.patch('OS-KSCRUD/users/%s' % user_id, patch_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
diff --git a/tempest/services/identity/v2/json/roles_client.py b/tempest/services/identity/v2/json/roles_client.py
index de8f9cb..ef6dfe9 100644
--- a/tempest/services/identity/v2/json/roles_client.py
+++ b/tempest/services/identity/v2/json/roles_client.py
@@ -18,12 +18,13 @@
 class RolesClient(service_client.ServiceClient):
     api_version = "v2.0"
 
-    def create_role(self, name):
-        """Create a role."""
-        post_body = {
-            'name': name,
-        }
-        post_body = json.dumps({'role': post_body})
+    def create_role(self, **kwargs):
+        """Create a role.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-identity-v2-ext.html#createRole
+        """
+        post_body = json.dumps({'role': kwargs})
         resp, body = self.post('OS-KSADM/roles', post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
diff --git a/tempest/services/identity/v3/json/identity_client.py b/tempest/services/identity/v3/json/identity_client.py
index 972db99..ab8ba2a 100644
--- a/tempest/services/identity/v3/json/identity_client.py
+++ b/tempest/services/identity/v3/json/identity_client.py
@@ -180,12 +180,13 @@
         self.expected_success(204, resp.status)
         return service_client.ResponseBody(resp, body)
 
-    def create_role(self, name):
-        """Create a Role."""
-        post_body = {
-            'name': name
-        }
-        post_body = json.dumps({'role': post_body})
+    def create_role(self, **kwargs):
+        """Create a Role.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-identity-v3.html#createRole
+        """
+        post_body = json.dumps({'role': kwargs})
         resp, body = self.post('roles', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
@@ -205,12 +206,13 @@
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
 
-    def update_role(self, name, role_id):
-        """Create a Role."""
-        post_body = {
-            'name': name
-        }
-        post_body = json.dumps({'role': post_body})
+    def update_role(self, role_id, **kwargs):
+        """Update a Role.
+
+        Available params: see http://developer.openstack.org/
+                          api-ref-identity-v3.html#updateRole
+        """
+        post_body = json.dumps({'role': kwargs})
         resp, body = self.patch('roles/%s' % str(role_id), post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
diff --git a/tempest/services/identity/v3/json/policy_client.py b/tempest/services/identity/v3/json/policies_client.py
similarity index 97%
rename from tempest/services/identity/v3/json/policy_client.py
rename to tempest/services/identity/v3/json/policies_client.py
index 7927ed5..639ed6d 100644
--- a/tempest/services/identity/v3/json/policy_client.py
+++ b/tempest/services/identity/v3/json/policies_client.py
@@ -22,7 +22,7 @@
 from tempest.common import service_client
 
 
-class PolicyClient(service_client.ServiceClient):
+class PoliciesClient(service_client.ServiceClient):
     api_version = "v3"
 
     def create_policy(self, **kwargs):
diff --git a/tempest/services/identity/v3/json/region_client.py b/tempest/services/identity/v3/json/regions_client.py
similarity index 98%
rename from tempest/services/identity/v3/json/region_client.py
rename to tempest/services/identity/v3/json/regions_client.py
index 3595391..bc4b7a1 100644
--- a/tempest/services/identity/v3/json/region_client.py
+++ b/tempest/services/identity/v3/json/regions_client.py
@@ -23,7 +23,7 @@
 from tempest.common import service_client
 
 
-class RegionClient(service_client.ServiceClient):
+class RegionsClient(service_client.ServiceClient):
     api_version = "v3"
 
     def create_region(self, region_id=None, **kwargs):
diff --git a/tempest/tests/common/test_service_clients.py b/tempest/tests/common/test_service_clients.py
index daeb0c0..f248957 100644
--- a/tempest/tests/common/test_service_clients.py
+++ b/tempest/tests/common/test_service_clients.py
@@ -26,8 +26,8 @@
 from tempest.services.identity.v3.json import endpoints_client
 from tempest.services.identity.v3.json import identity_client as \
     identity_v3_identity_client
-from tempest.services.identity.v3.json import policy_client
-from tempest.services.identity.v3.json import region_client
+from tempest.services.identity.v3.json import policies_client
+from tempest.services.identity.v3.json import regions_client
 from tempest.services.identity.v3.json import services_client
 from tempest.services.image.v1.json import images_client
 from tempest.services.image.v2.json import images_client as images_v2_client
@@ -118,8 +118,8 @@
             credentials_client.CredentialsClient,
             endpoints_client.EndPointClient,
             identity_v3_identity_client.IdentityV3Client,
-            policy_client.PolicyClient,
-            region_client.RegionClient,
+            policies_client.PoliciesClient,
+            regions_client.RegionsClient,
             services_client.ServicesClient,
             images_client.ImagesClient,
             images_v2_client.ImagesClientV2