class HttpConstants {
  //h2协议
  static const String h2 = 'h2';

  /// Line feed character /n
  static const int lf = 10;

  /// Carriage return /r
  static const int cr = 13;

  /// Horizontal space
  static const int sp = 32;

  /// Colon ':'
  static const int colon = 58;
}