Use no op method instead of directly comparing values

Author: nbayati

google/auth/compute_engine/credentials.py

@@ -187,9 +187,9 @@ def with_quota_project(self, quota_project_id):
             quota_project_id=quota_project_id,
             scopes=self._scopes,
             default_scopes=self._default_scopes,
+            universe_domain=self._universe_domain,
             trust_boundary=self._trust_boundary,
         )
-        creds._universe_domain = self._universe_domain
         creds._universe_domain_cached = self._universe_domain_cached
         return creds
 
@@ -203,9 +203,9 @@ def with_scopes(self, scopes, default_scopes=None):
             default_scopes=default_scopes,
             service_account_email=self._service_account_email,
             quota_project_id=self._quota_project_id,
+            universe_domain=self._universe_domain,
             trust_boundary=self._trust_boundary,
         )
-        creds._universe_domain = self._universe_domain
         creds._universe_domain_cached = self._universe_domain_cached
         return creds
 
@@ -227,9 +227,9 @@ def with_trust_boundary(self, trust_boundary):
             quota_project_id=self._quota_project_id,
             scopes=self._scopes,
             default_scopes=self._default_scopes,
+            universe_domain=self._universe_domain,
             trust_boundary=trust_boundary,
         )
-        creds._universe_domain = self._universe_domain
         creds._universe_domain_cached = self._universe_domain_cached
         return creds
 

google/auth/credentials.py

@@ -310,10 +310,7 @@ def apply(self, headers, token=None):
         """Apply the token to the authentication header."""
         super().apply(headers, token)
         if self._trust_boundary is not None:
-            if (
-                self._trust_boundary["encodedLocations"]
-                == NO_OP_TRUST_BOUNDARY_ENCODED_LOCATIONS
-            ):
+            if self._has_no_op_trust_boundary:
                 # STS expects an empty string if the trust boundary value is no-op.
                 headers["x-allowed-locations"] = ""
             else: