header.go
func (h *RequestHeader) SetMethodBytes(method []byte) {
	h.method = append(h.method[:0], method...)
}
func (h *RequestHeader) SetMethodBytes(method []byte) {
	h.method = append(h.method[:0], method...)
}
func ( h * RequestHeader ) SetMethodBytes ( method [ ] byte ) { h . method = append ( h . method [ : 0 ] , method ... ) }
// SetMethodBytes sets HTTP request method.
SetMethodBytes sets HTTP request method .