Filter by user in total message count endpoint

Are there any plans to add the ability to include parameters in the group_channel/{channel_url}/messages/total_count endpoint. It would be really useful to be able to filter by user_id and/or timestamp for example. As of now, I have to load all of the messages, 200 at at time, using the message list endpoint to get the total count of messages sent by a user in a channel. As you can imagine, that isn’t particularly performant.

Alternatively, adding this field to the metrics/analytics endpoint could also be an option, but I imagine adding some query parameters to the channel messages count endpoint that already exists would be pretty straight forward.