The `marketType` and `countryCode` does not work on betfair Event files, this is due to the [logic](https://github.com/betcode-org/flumine/blob/fd527626accbddd7782477f420855f57e928dae9/flumine/streams/streams.py#L46) only checking the first line of the file provided.
The
marketTypeandcountryCodedoes not work on betfair Event files, this is due to the logic only checking the first line of the file provided.