Move import statements into tagged regions [(#2219)](#2219)

* Move import statements into tagged regions

So they will show up in context on web pages.

* Flake8 didn't like needless enums imports

I have to admit, it's right. It's clearer now.

Author: engelke

kms/snippets/snippets.py

@@ -14,14 +14,12 @@
 # See the License for the specific language governing permissions and
 
 
-from google.cloud import kms_v1
-from google.cloud.kms_v1 import enums
-
-
 # [START kms_create_keyring]
 def create_key_ring(project_id, location_id, key_ring_id):
     """Creates a KeyRing in the given location (e.g. global)."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -44,6 +42,9 @@ def create_key_ring(project_id, location_id, key_ring_id):
 def create_crypto_key(project_id, location_id, key_ring_id, crypto_key_id):
     """Creates a CryptoKey within a KeyRing in the given location."""
 
+    from google.cloud import kms_v1
+    from google.cloud.kms_v1 import enums
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -67,6 +68,8 @@ def encrypt_symmetric(project_id, location_id, key_ring_id, crypto_key_id,
                       plaintext):
     """Encrypts input plaintext data using the provided symmetric CryptoKey."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -85,6 +88,8 @@ def decrypt_symmetric(project_id, location_id, key_ring_id, crypto_key_id,
                       ciphertext):
     """Decrypts input ciphertext using the provided symmetric CryptoKey."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -103,6 +108,9 @@ def disable_crypto_key_version(project_id, location_id, key_ring_id,
     """Disables a CryptoKeyVersion associated with a given CryptoKey and
     KeyRing."""
 
+    from google.cloud import kms_v1
+    from google.cloud.kms_v1 import enums
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -128,6 +136,9 @@ def enable_crypto_key_version(project_id, location_id, key_ring_id,
     """Enables a CryptoKeyVersion associated with a given CryptoKey and
     KeyRing."""
 
+    from google.cloud import kms_v1
+    from google.cloud.kms_v1 import enums
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -153,6 +164,8 @@ def destroy_crypto_key_version(
     """Schedules a CryptoKeyVersion associated with a given CryptoKey and
     KeyRing for destruction 24 hours in the future."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -174,6 +187,8 @@ def restore_crypto_key_version(
         project_id, location_id, key_ring_id, crypto_key_id, version_id):
     """Restores a CryptoKeyVersion that is scheduled for destruction."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -198,6 +213,8 @@ def add_member_to_crypto_key_policy(
     """Adds a member with a given role to the Identity and Access Management
     (IAM) policy for a given CryptoKey associated with a KeyRing."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -227,6 +244,8 @@ def add_member_to_key_ring_policy(
     """Adds a member with a given role to the Identity and Access Management
     (IAM) policy for a given KeyRing."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -257,6 +276,8 @@ def remove_member_from_crypto_key_policy(
     """Removes a member with a given role from the Identity and Access
     Management (IAM) policy for a given CryptoKey associated with a KeyRing."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -285,6 +306,8 @@ def remove_member_from_key_ring_policy(project_id, location_id, key_ring_id,
     """Removes a member with a given role from the Identity and Access
     Management (IAM) policy for a given KeyRing."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -312,6 +335,8 @@ def get_key_ring_policy(project_id, location_id, key_ring_id):
     """Gets the Identity and Access Management (IAM) policy for a given KeyRing
     and prints out roles and the members assigned to those roles."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()
 
@@ -334,6 +359,8 @@ def get_crypto_key_policy(project_id, location_id, key_ring_id, crypto_key_id):
     """Gets the Identity and Access Management (IAM) policy for a given KeyRing
     and prints out roles and the members assigned to those roles."""
 
+    from google.cloud import kms_v1
+
     # Creates an API client for the KMS API.
     client = kms_v1.KeyManagementServiceClient()