Function from_bytes 

pub fn from_bytes<T>(bytes: &[u8]) -> Result<T, ToFromByteError>
where
    T: for<'a> ToFromBytes<'a>,

Convenience function.

Deserializes a complete value from a byte slice.

Fails with TrailingBytes if the input contains extra data after the value. This is intentional, silently ignoring trailing bytes is a common source of errors and security bugs.

Use this when you expect exactly one message per buffer (most common case).