Trait Key
densevec
pub trait Key: Clone + PartialEq { fn to_usize(self) -> usize; fn from_usize(k: usize) -> Self; }
fn to_usize(self) -> usize
fn from_usize(k: usize) -> Self
impl Key for usize
impl Key for u64
impl Key for u32
impl Key for u16
impl Key for u8