def fix_not_a_in_b(node: LN, capture: Capture, filename: Filename): capture["element"].parent = None capture["collection"].parent = None new_comparison = Node( comparison, [ capture["element"], Node(comp_op, [Leaf(1, "not", prefix=" "), Leaf(1, "in", prefix=" ")]), capture["collection"], ], ) new_comparison.parent = node.parent return new_comparison