Changes to Batch Cancel Orders (V2)

the exchange_index request property default value 0 was removed

removed the optional property orders/items/error/allOf[#/components/schemas/ErrorResponse]/service from the response with the 200 status

removed the optional property service from the response with the 400 status

removed the optional property service from the response with the 401 status

removed the optional property service from the response with the 403 status

removed the optional property service from the response with the 500 status

the subaccount request property default value 0 was removed

added the new optional request property orders/items/market_ticker

endpoint added