Add service_account.Credentials.with_claims (#140)
diff --git a/google/auth/jwt.py b/google/auth/jwt.py
index 7a9bdd5..506ba0e 100644
--- a/google/auth/jwt.py
+++ b/google/auth/jwt.py
@@ -42,6 +42,7 @@
import base64
import collections
+import copy
import datetime
import json
@@ -426,13 +427,15 @@
Returns:
google.auth.jwt.Credentials: A new credentials instance.
"""
+ new_additional_claims = copy.deepcopy(self._additional_claims)
+ new_additional_claims.update(additional_claims or {})
+
return Credentials(
self._signer,
issuer=issuer if issuer is not None else self._issuer,
subject=subject if subject is not None else self._subject,
audience=audience if audience is not None else self._audience,
- additional_claims=self._additional_claims.copy().update(
- additional_claims or {}))
+ additional_claims=new_additional_claims)
def _make_jwt(self):
"""Make a signed JWT.