feat: add comprehensive GitHub workflow and development tools

app/.venv/Lib/site-packages/psycopg/_transformer.py

@@ -0,0 +1,21 @@
+"""
+Helper object to transform values between Python and PostgreSQL
+
+This module exports the requested implementation to the rest of the package.
+"""
+
+# Copyright (C) 2023 The Psycopg Team
+
+from __future__ import annotations
+
+from . import abc
+from ._cmodule import _psycopg
+
+Transformer: type[abc.Transformer]
+
+if _psycopg:
+    Transformer = _psycopg.Transformer
+else:
+    from . import _py_transformer
+
+    Transformer = _py_transformer.Transformer