# File lib/omniauth/strategies/oauth2/foursquare.rb, line 11
      def initialize(app, client_id=nil, client_secret=nil, options={}, &block)
        options[:sign_in] ||= true
        client_options = {
          :authorize_url => authorize_url(options),
          :token_url => 'https://foursquare.com/oauth2/access_token',
        }
        super(app, :foursquare, client_id, client_secret, client_options, options, &block)
      end