get(), set(), get_range(), set_range(), or_range(), and_range(), xor_range()

[artimonist]

fn get(&self, index: usize) -> bool;
fn get_range<T>(&self, range: Range<usize>) -> T; 

fn set(&mut self, index: usize, value: bool) -> &mut Self;
fn set_range<T>(&mut self, range: Range<usize>, value: T) -> &mut Self; 

fn or_range<T>(&mut self, range: Range<usize>, value: T) -> &mut Self;
fn and_range<T>(&mut self, range: Range<usize>, value: T) -> &mut Self;
fn xor_range<T>(&mut self, range: Range<usize>, value: T) -> &mut Self;

Return value can modified to Result<&mut Self, Error> for none panic.