Yggdrasil.Backend.Default.disconnected

You're seeing just the function disconnected, go back to Yggdrasil.Backend.Default module for more information.
Link to this function

disconnected(channel, pid)

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Specs

disconnected(Yggdrasil.Channel.t(), nil | pid()) :: :ok | {:error, term()}

Broadcast a disconnection message in a channel and optionally to a pid.