public override async Task WalkAsync(PythonWalkerAsync walker, CancellationToken cancellationToken = default)
{
if (await walker.WalkAsync(this, cancellationToken))
{
if (ExceptType != null)
{
await ExceptType.WalkAsync(walker, cancellationToken);
}
if (Value != null)
{
await Value.WalkAsync(walker, cancellationToken);
}
if (Traceback != null)
{
await Traceback.WalkAsync(walker, cancellationToken);
}
if (Cause != null)
{
await Cause.WalkAsync(walker, cancellationToken);
}
}
await walker.PostWalkAsync(this, cancellationToken);
}