refactor(api-core): import get_universe_domain with fallback for PR checks compatibility

Author: hebaalazzeh

packages/google-api-core/google/api_core/gapic_v1/client_utils.py

@@ -18,6 +18,37 @@
 
 from google.auth.exceptions import MutualTLSChannelError  # type: ignore
 
+try:
+    from google.api_core.universe import (  # type: ignore[attr-defined]
+        get_universe_domain,
+    )
+except ImportError:
+
+    def get_universe_domain(
+        *potential_universes: Optional[str],
+        default_universe: str = "googleapis.com",
+    ) -> str:
+        """Return the universe domain used by the client.
+
+        Args:
+            *potential_universes (Optional[str]): Potential universe domains in order of preference.
+            default_universe (str): The default universe domain.
+
+        Returns:
+            str: The universe domain to be used by the client.
+
+        Raises:
+            ValueError: If the resolved universe domain is an empty string.
+        """
+        resolved = next(
+            (x.strip() for x in potential_universes if x is not None),
+            default_universe,
+        )
+
+        if not resolved:
+            raise ValueError("Universe Domain cannot be an empty string.")
+        return resolved
+
 
 def get_default_mtls_endpoint(api_endpoint: Optional[str]) -> Optional[str]:
     """Converts api endpoint to mTLS endpoint.
@@ -106,29 +137,3 @@ def get_api_endpoint(
         return default_mtls_endpoint
     else:
         return default_endpoint_template.format(UNIVERSE_DOMAIN=universe_domain)
-
-
-def get_universe_domain(
-    *potential_universes: Optional[str],
-    default_universe: str = "googleapis.com",
-) -> str:
-    """Return the universe domain used by the client.
-
-    Args:
-        *potential_universes (Optional[str]): Potential universe domains in order of preference.
-        default_universe (str): The default universe domain.
-
-    Returns:
-        str: The universe domain to be used by the client.
-
-    Raises:
-        ValueError: If the resolved universe domain is an empty string.
-    """
-    resolved = next(
-        (x.strip() for x in potential_universes if x is not None),
-        default_universe,
-    )
-
-    if not resolved:
-        raise ValueError("Universe Domain cannot be an empty string.")
-    return resolved

packages/google-api-core/google/api_core/gapic_v1/requests.py

@@ -21,8 +21,8 @@
 if they are not already set.
 """
 
-from typing import Union
 import uuid
+from typing import Union
 
 import google.protobuf.message
 

packages/google-api-core/tests/unit/gapic/test_requests.py

@@ -19,7 +19,6 @@
 
 from google.api_core.gapic_v1.requests import setup_request_id
 
-
 # --- Mock Request Helper Classes ---