Fix a typo.

PiperOrigin-RevId: 266956553

python/aead/aead_key_templates.py

@@ -14,7 +14,7 @@
 
 """Pre-generated KeyTemplate for Aead.
 
-One can use these templates to generate new tink_pb2.Keyset with
+One can use these templates to generate a new tink_pb2.Keyset with
 tink_pb2.KeysetHandle. To generate a new keyset that contains a single
 aes_eax_pb2.AesEaxKey, one can do:
 handle = keyset_handle.KeysetHandle(aead_key_templates.AES128_EAX).

python/daead/deterministic_aead_key_templates.py

@@ -14,7 +14,7 @@
 
 """Pre-generated KeyTemplate for DeterministicAead.
 
-One can use these templates to generate new tink_pb2.Keyset with
+One can use these templates to generate a new tink_pb2.Keyset with
 tink_pb2.KeysetHandle. To generate a new keyset that contains a single
 tink_pb2.HmacKey, one can do:
 handle = keyset_handle.KeysetHandle(aead_key_templates.AES128_EAX).

python/hybrid/hybrid_key_templates.py

@@ -14,7 +14,7 @@
 
 """Pre-generated KeyTemplate for HybridEncryption.
 
-One can use these templates to generate new tink_pb2.Keyset with
+One can use these templates to generate a new tink_pb2.Keyset with
 tink_pb2.KeysetHandle. To generate a new keyset that contains a single
 tink_pb2.HmacKey, one can do:
 handle = keyset_handle.KeysetHandle(mac_key_templates.HMAC_SHA256_128BITTAG).

python/signature/signature_key_templates.py

@@ -14,7 +14,7 @@
 
 """Pre-generated KeyTemplate for PublicKeySign and PublicKeyVerify.
 
-One can use these templates to generate new tink_pb2.Keyset with
+One can use these templates to generate a new tink_pb2.Keyset with
 tink_pb2.KeysetHandle. To generate a new keyset that contains a single
 EcdsaPrivateKey, one can do: