pub fn mut_key(&mut self) -> &mut Key {
        if self.key.is_none() {
            self.key.set_default();
        };
        self.key.as_mut().unwrap()
    }
// Mutable pointer to the field.
// If field is not initialized, it is initialized with default value first.
Mutable pointer to the field.
If field is not initialized, it is initialized with default value first.
Mutable pointer to the field . If field is not initialized it is initialized with default value first .
pub fn mut_key(&mut self) -> &mut Key {
        if self.key.is_none() {
            self.key.set_default();
        };
        self.key.as_mut().unwrap()
    }
pub fn mut_key ( & mut self ) -> & mut Key { if self . key . is_none ( ) { self . key . set_default ( ) ; } ; self . key . as_mut ( ) . unwrap ( ) }
Mutable pointer to the field.
Mutable pointer to the field .
&mut self