code: func (vm *VM) EvaluateSnippetMulti(filename string, snippet string) (files map[string]string, formattedErr error) {
  	output, err := vm.evaluateSnippet(filename, snippet, evalKindMulti)
  	if err != nil {
  		return nil, errors.New(vm.ErrorFormatter.Format(err))
  	}
  	files = output.(map[string]string)
  	return
  }
docs: // EvaluateSnippetMulti evaluates a string containing Jsonnet code to key-value
  // pairs. The keys are field name strings and the values are JSON strings.
  //
  // The filename parameter is only used for error messages.