Disconnecting specific participant in Genesys Cloud conference via API?

Trying to drop a single agent from a multi-party call without killing the whole session. I’m using the Python SDK to hit DELETE /api/v2/conversations/conferences/{conversationId}/participants/{participantId} but getting a 404 even though the IDs look correct.

Is this endpoint actually supported for active conferences or do I need to use the bulk update method? The docs are pretty vague on the exact payload structure for partial participant removal.