pub fn with_capacity(capacity: usize) -> Self {
        Self {
            keys: Vec::with_capacity(capacity),
            values: Vec::with_capacity(capacity),
        }
    }
/// Creates a new map of specified capacity.
Creates a new map of specified capacity.
Creates a new map of specified capacity .
pub fn with_capacity(capacity: usize) -> Self {
        Self {
            keys: Vec::with_capacity(capacity),
            values: Vec::with_capacity(capacity),
        }
    }
pub fn with_capacity ( capacity : usize ) -> Self { Self { keys : Vec :: with_capacity ( capacity ) , values : Vec :: with_capacity ( capacity ) , } }
Creates a new map of specified capacity.
Creates a new map of specified capacity .
capacity
usize
capacity
usize