pub fn parse_set_domain(
set_domain: Node<'_>,
source_code: &str,
symbols: Option<Rc<RefCell<SymbolTable>>>,
) -> Result<DomainPtr, EssenceParseError>pub fn parse_set_domain(
set_domain: Node<'_>,
source_code: &str,
symbols: Option<Rc<RefCell<SymbolTable>>>,
) -> Result<DomainPtr, EssenceParseError>