def find_node(src):
    for i in target['extra_files']:
        for j in arg_list_from_node(i):
            if isinstance(j, StringNode):
                if (j.value == src):
                    return (i, j)
    return (None, None)
def find_node(src):
    for i in target['extra_files']:
        for j in arg_list_from_node(i):
            if isinstance(j, StringNode):
                if (j.value == src):
                    return (i, j)
    return (None, None)