get https://api-mtls.eu.tispayments.com/rest/api/btm/files
Retrieve all files which are not yet downloaded by the given client from BTM. A download has to be confirmed explicitly by the client so that it gets removed from the list of available files. Besides up to 250 files will be retrieved at once. Files can be downloaded either from a message channel or from the BTM mapping engine. For the BTM mapping engine please check the general notes above.