style: drop unneeded function definition split

diff --git a/psycopg/psycopg/_connection_base.py b/psycopg/psycopg/_connection_base.py
index 3a1bfe468a7bcaa42bff3faa57676b94f32eb465..003495cfc6af4cca04535d73086f01091acf67dd 100644 (file)
--- a/psycopg/psycopg/_connection_base.py
+++ b/psycopg/psycopg/_connection_base.py
@@ -420,10 +420,7 @@ class BaseConnection(Generic[Row]):
     # should have a lock and hold it before calling and consuming them.
 
     @classmethod
-    def _connect_gen(
-        cls,
-        conninfo: str = "",
-    ) -> PQGenConn[Self]:
+    def _connect_gen(cls, conninfo: str = "") -> PQGenConn[Self]:
         """Generator to connect to the database and create a new instance."""
         pgconn = yield from generators.connect(conninfo)
         conn = cls(pgconn)