/// Sets the internal position for writing or reading.
pubtraitBytesSeek{/// Returns the internal position.
fnposition(&self)->usize;/// Sets the internal position.
fnseek(&mutself, pos:usize);/// Advances the internal position.
////// ## Panic
/// May panic depending on the `BytesSeek::seek` implementation.
fnadvance(&mutself, adv:usize){self.seek(self.position()+ adv);}}