docs: function Swig() {
    
    var opts = (app.config.engines && app.config.engines.swig) || {};
    
    this.options = protos.extend({
      cache: false
    }, opts);
    
    swig.setDefaults(this.options); // Set options for swig
    
    this.module = swig;
    this.multiPart = true;
    this.extensions = ['swig', 'swig.html'];
  
  }