code: func (c *TemplateConfig) Display() string {
  	if c == nil {
  		return ""
  	}
  
  	source := c.Source
  	if StringPresent(c.Contents) {
  		source = String("(dynamic)")
  	}
  
  	return fmt.Sprintf("%q => %q",
  		StringVal(source),
  		StringVal(c.Destination),
  	)
  }
docs: // Display is the human-friendly form of this configuration. It tries to
  // describe this template in as much detail as possible in a single line, so
  // log consumers can uniquely identify it.