code: func init() {
  	noTraverseTypeList = map[reflect.Type]bool{}
  	converterMap = map[reflect.Type]map[reflect.Type]Converter{}
  
  	// Default NoTraverseTypeList
  	// --------------------------
  	// Auto No Traverse struct list for not traversing Deep Level
  	// However, field value will be evaluated/processed by go-model library
  	AddNoTraverseType(
  		time.Time{},
  		&time.Time{},
  		os.File{},
  		&os.File{},
  		http.Request{},
  		&http.Request{},
  		http.Response{},
  		&http.Response{},
  
  		// it's better to add it to the list for appropriate type(s)
  	)
  }
docs: //
  // go-model init
  //