code: function Route(method, path, callbacks, options) {
    options = options || {};
    this.path = path;
    this.method = method;
    this.callbacks = callbacks;
    this.regexp = pathRegexp(path, this.keys = [], options.sensitive, options.strict);
  }
docs: Initialize `Route` with the given HTTP `method`, `path`,
  and an array of `callbacks` and `options`.
  
  Options:
  
  - `sensitive`    enable case-sensitive routes
  - `strict`       enable strict matching for trailing slashes
  
  @param {String} method
  @param {String} path
  @param {Array} callbacks
  @param {Object} options.
  @api private