Telehashname.best_match

You're seeing just the function best_match, go back to Telehashname module for more information.

Specs

best_match(csid_list(), csid_list()) :: csid() | csk_tuple() | nil

Find the highest rated match among two CSK lists

The values returned from the outs list. Selecting which list to use for check and outs may provide some useful information "for free."