pub fn len(&self) -> usize {
        match self.internal() {
            Internal::Table { sz, .. } => sz as usize,
            Internal::Dense { sz, .. } => sz as usize,
            Internal::Empty => 0,
            Internal::Tiny(t) => t.len(),
        }
    }
/// The number of elements in the set.
The number of elements in the set.
The number of elements in the set .
pub fn len(&self) -> usize {
        match self.internal() {
            Internal::Table { sz, .. } => sz as usize,
            Internal::Dense { sz, .. } => sz as usize,
            Internal::Empty => 0,
            Internal::Tiny(t) => t.len(),
        }
    }
pub fn len ( & self ) -> usize { match self . internal ( ) { Internal :: Table { sz , .. } => sz as usize , Internal :: Dense { sz , .. } => sz as usize , Internal :: Empty => 0 , Internal :: Tiny ( t ) => t . len ( ) , } }
The number of elements in the set.
The number of elements in the set .
&self
&self