code: func CheckPrefixFactory(prefixes ...string) func(string) (string, bool) {
  	return func(content string) (string, bool) {
  		for _, prefix := range prefixes {
  			if strings.HasPrefix(content, prefix) {
  				return strings.TrimPrefix(content, prefix), true
  			}
  		}
  		return "", false
  	}
  }
docs: // CheckPrefixFactory Creates a prefix checking function and stuff.