add

server/.venv/lib/python3.11/site-packages/aiomysql/sa/exc.py

@@ -0,0 +1,28 @@
+# ported from: https://github.com/aio-libs/aiopg/blob/master/aiopg/sa/exc.py
+
+
+class Error(Exception):
+    """Generic error class."""
+
+
+class ArgumentError(Error):
+    """Raised when an invalid or conflicting function argument is supplied.
+
+    This error generally corresponds to construction time state errors.
+    """
+
+
+class InvalidRequestError(ArgumentError):
+    """aiomysql.sa was asked to do something it can't do.
+
+    This error generally corresponds to runtime state errors.
+    """
+
+
+class NoSuchColumnError(KeyError, InvalidRequestError):
+    """A nonexistent column is requested from a ``RowProxy``."""
+
+
+class ResourceClosedError(InvalidRequestError):
+    """An operation was requested from a connection, cursor, or other
+    object that's in a closed state."""