code: func Compress(level int, types ...string) func(next http.Handler) http.Handler {
  	defaultCompressor = NewCompressor(level, types...)
  	return defaultCompressor.Handler()
  }
docs: // Compress is a middleware that compresses response
  // body of a given content types to a data format based
  // on Accept-Encoding request header. It uses a given
  // compression level.
  //
  // NOTE: make sure to set the Content-Type header on your response
  // otherwise this middleware will not compress the response body. For ex, in
  // your handler you should set w.Header().Set("Content-Type", http.DetectContentType(yourBody))
  // or set it manually.
  //
  // DEPRECATED