func (w *WriteBuffer) WriteBytes(in []byte) {
	if b := w.reserve(len(in)); b != nil {
		copy(b, in)
	}
}
func (w *WriteBuffer) WriteBytes(in []byte) {
	if b := w.reserve(len(in)); b != nil {
		copy(b, in)
	}
}
func ( w * WriteBuffer ) WriteBytes ( in [ ] byte ) { if b := w . reserve ( len ( in ) ) ; b != nil { copy ( b , in ) } }
// WriteBytes writes a slice of bytes to the buffer
WriteBytes writes a slice of bytes to the buffer