Hi ,deploy server-less application in local-stack through cloud formation template but i start notice account id for cloud formation is 12345789 but for other service it is 00000000 ,so its like cloud formation  try to deploy service in different account 
try:
        float(s)  
        return True
    except ValueError:
        return False
def short_uid():
    return str(uuid.uuid4())[0:8]
def json_safe(item):
    """ return a copy of the given object (e.g., dict) that is safe for JSON dumping """
    try:
        return json.loads(json.dumps(item, cls=CustomEncoder))
    except Exception:
        item = fix_json_keys(item)
        return json.loads(json.dumps(item, cls=CustomEncoder))
def fix_json_keys(item):
    """ make sure the keys of a JSON are strings (not binary type or other) """
    item_copy = item
    if isinstance(item, list):
        item_copy = []
        for i in item:
            item_copy.append(fix_json_keys(i))
    if isinstance(item, dict):
        item_copy = {}
        for k, v in item.items():
            item_copy[to_str(k)] = fix_json_keys(v)
    return item_copy
def save_file(file, content, append=False):