API SetTrainerServiceTypeFilter

__NOTOC__
Sets the status of a skill filter in the trainer window.
 SetTrainerServiceTypeFilter(type, status [, exclusive])
==Parameters==
===Arguments===
:;type: - filter to set the status for:
::*"available" (can learn)
::*"unavailable" (can't learn)
::*"used" (already known)
:;status:Flag - 1 to show, 0 to hide items matching the specified filter. (Note that this is likely a bug as GetTrainerServiceTypeFilter returns a boolean now.)
:;exclusive : ? - ?
==Patch changes==