code: func IsExperimentEnabled(name string) bool {
  	if _, ok := stage0Experiments[name]; !ok {
  		return false
  	}
  
  	v := os.Getenv("RKT_EXPERIMENT_" + strings.ToUpper(name))
  
  	enabled, err := strconv.ParseBool(v)
  	if err != nil {
  		return false // ignore errors from bool conversion
  	}
  
  	return enabled
  }
docs: // IsExperimentEnabled returns true if the given rkt experiment is enabled.
  // The given name is converted to upper case and a bool RKT_EXPERIMENT_{NAME}
  // environment variable is retrieved.
  // If the experiment name is unknown, false is returned.
  // If the environment variable does not contain a valid bool value
  // according to strconv.ParseBool, false is returned.