Open conversation
documentedOpen or resume a direct message or multi-person direct message.
POST /api/conversations.openConversationsno implementation yet0 runsInput
users*
User IDs to open conversation (comma-separated, 1-8 IDs)
U12345,U23456
return_im
Return full IM channel object in response (true/false)
true or false
Calls Slack as you (your API key is your account); keychains.dev holds the credentials.