code: func FnSplit(name string, input interface{}, template interface{}) interface{} {
  
  	// { "Fn::Split" : [ "delimiter", "source string" ] }
  
  	// Check that the input is an array
  	if arr, ok := input.([]interface{}); ok {
  		// The first element should be a string (the delimiter)
  		if delim, ok := arr[0].(string); ok {
  			// The second element should be a string (the content to join)
  			if str, ok := arr[1].(string); ok {
  				return strings.Split(str, delim)
  			}
  		}
  	}
  
  	return []string{}
  
  }
docs: // FnSplit resolves the 'Fn::Split' AWS CloudFormation intrinsic function.
  // See: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-split.html