Examples on how to use `match` when walking through an AST using astroid

match_astroid_examples.py

def _walk_through(node: astroid.NodeNG):
    for symbol in node.get_children():
        match symbol:
            # check all classes
            case astroid.ClassDef():
                _check_classes(symbol)
            # check all functions with name "some_function_name"
            case astroid.FunctionDef(name="some_function_name"):
                _check_some_function_name(symbol)
            case astroid.Expr(
                value=astroid.Call(func=func, args=args, keywords=keywords)
            ):
                _check_function_call(func, args, keywords)
            case astroid.Assign(value=astroid.Subscript() as name):
                _check_assignment_value(name)

        _walk_through(symbol)