WhiteRabbit.Core.get_channel

You're seeing just the function get_channel, go back to WhiteRabbit.Core module for more information.
Link to this function

get_channel(channel_name, connection_name)

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Specs

get_channel(atom(), atom()) :: {:ok, AMQP.Channel.t()}

Get the application's default channel. If not available, open another.

You can monitor the returned channel for :DOWN events to be able to re-register as a consumer.