pub fn is_real(&self) -> bool {
        match *self {
            _ => false,
        }
    }
/// Check if this type is a real.
Check if this type is a real.
Check if this type is a real .
pub fn is_real(&self) -> bool {
        match *self {
            _ => false,
        }
    }
pub fn is_real ( & self ) -> bool { match * self { _ => false , } }
Check if this type is a real.
Check if this type is a real .
&self
&self