from .handler import _post

def LEN(value): return _post("len", {"value": value}).get("length")
def LIST_INDEX(lst, index): return _post("list_index", {"list": lst, "index": index})
def LIST_PUSH(lst, item): return _post("list_push", {"list": lst, "item": item})
def LIST_POP(lst): return _post("list_pop", {"list": lst})