code: func (s *ContextStoreWithDefault) ResetTLSMaterial(name string, data *store.ContextTLSData) error {
  	if name == DefaultContextName {
  		return errors.New("The default context store does not support ResetTLSMaterial")
  	}
  	return s.Store.ResetTLSMaterial(name, data)
  }
docs: // ResetTLSMaterial is not implemented for default context and fails