func (h *RequestHeader) AddBytesKV(key, value []byte) {
	h.Add(b2s(key), b2s(value))
}
func (h *RequestHeader) AddBytesKV(key, value []byte) {
	h.Add(b2s(key), b2s(value))
}
func ( h * RequestHeader ) AddBytesKV ( key , value [ ] byte ) { h . Add ( b2s ( key ) , b2s ( value ) ) }
// AddBytesKV adds the given 'key: value' header.
//
// Multiple headers with the same key may be added with this function.
// Use SetBytesKV for setting a single header for the given key.
AddBytesKV adds the given key : value header . Multiple headers with the same key may be added with this function . Use SetBytesKV for setting a single header for the given key .