Major fixes and new features

venv/lib/python3.12/site-packages/asyncpg/pgproto/frb.pyx

@@ -0,0 +1,12 @@
+# Copyright (C) 2016-present the asyncpg authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of asyncpg and is released under
+# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
+
+
+cdef object frb_check(FRBuffer *frb, ssize_t n):
+    if n > frb.len:
+        raise AssertionError(
+            f'insufficient data in buffer: requested {n} '
+            f'remaining {frb.len}')