/// Check if the choice is a record element.
Check if the choice is a record element.
Check if the choice is a record element .
pub fn is_element(&self) -> bool {
        match *self {
            Choice::Element(_) => true,
            _ => false,
        }
    }
pub fn is_element ( & self ) -> bool { match * self { Choice :: Element ( _ ) => true , _ => false , } }
Check if the choice is a record element.
Check if the choice is a record element .
&self