Function validate_random_list 

pub fn validate_random_list(
    key: &Token,
    _block: &Block,
    data: &Everything,
    sc: &mut ScopeContext,
    vd: Validator<'_>,
    tooltipped: Tooltipped,
    special_tokens: &mut SpecialTokens,
) -> bool

A specific validator for the random_list effect, which has a unique syntax.