def keys_exists(element, *keys):
    """"
    Check if *keys (nested) exists in `element` (dict).
    Thanks stackoverflow: https://stackoverflow.com/questions/43491287/elegant-way-to-check-if-a-nested-key-exists-in-a-dict
    """
    if not isinstance(element, dict):
        raise AttributeError('keys_exists() expects dict as first argument.')
    if len(keys) == 0:
        raise AttributeError('keys_exists() expects at least two arguments, one given.')

    _element = element
    for key in keys:
        try:
            _element = _element[key]
        except KeyError:
            return False
    return True