code: func NewImportPrivKeyCmd(privKey string, label *string, rescan *bool) *ImportPrivKeyCmd {
  	return &ImportPrivKeyCmd{
  		PrivKey: privKey,
  		Label:   label,
  		Rescan:  rescan,
  	}
  }
docs: // NewImportPrivKeyCmd returns a new instance which can be used to issue a
  // importprivkey JSON-RPC command.
  //
  // The parameters which are pointers indicate they are optional.  Passing nil
  // for optional parameters will use the default value.