Checks if the given iter is a valid iter for this gtk.list_store.ListStore.
This function is slow. Only use it for debugging and/or testing purposes.
the iterator to check
true if the iter is valid, false if the iter is invalid.
Deprecated: Use list models
Checks if the given iter is a valid iter for this gtk.list_store.ListStore.
This function is slow. Only use it for debugging and/or testing purposes.