- src
character string, the name of the broker/exchange platform, e.g. "tinkoff", "finam", "alor"
- api.key
character string, the API key required for authentication
- orderId
character string, the ID of the order to be cancelled
- clientId
character string, the ID of the client account
- board
character string, the name of the exchange board, required for some platforms
- live
logical, whether to execute the order in a live environment, default is TRUE
- verbose
logical, whether to print the HTTP response message, default is TRUE