RaftFleet.deactivate
You're seeing just the function
deactivate, go back to RaftFleet module for more information.
Specs
deactivate() :: :ok | {:error, :inactive}
Deactivates Node.self().
Call this function before you remove an ErlangVM from your cluster. Note that calling this function does not immediately remove consensus member processes in this node; these processes will be gradually migrated to other nodes by periodic rebalancing.