bitstr is just that: a sequence of bytes. It isn't human-readable. Under the hood, everything must be converted to a byte string before it can be stored in a computer.
Which means that a bitstring is a contiguous sequence of bits in memory.
```rust // 1. let bytes = [82, 105, 111]; let bit: &BitStr = BitStr::from(&bytes);
// 2. let bytes = b"Rust"; let bit: &BitStr = BitStr::from(bytes);
// 3. let bit: &BitStr = BitStr::from(b"My sequence of bytes"); let op = bit.contains([82, 105, 111]); // false
// 4. let bit: &BitStr = BitStr::from(b"Rio"); let op = bit.contains_u8(82); // true ```