exclude points doesn't work

[i4innovationnet]

I'm trying to exclude certain points by providing them in WKT format. This is supposed to be a "beta" feature which I'm not sure is enabled by default or requires some config however it doesn't work for me.

Error is:

{
  "message": "exclude value must be one of: ferry, cash_only_tolls, border_crossing, country_border, state_border",
  "code": "InvalidInput"
}