rabbitmq-server/deps/rabbitmq_cli/lib/rabbitmq/cli/formatter_behaviour.ex

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## The Original Code is RabbitMQ.
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## The Initial Developer of the Original Code is GoPivotal, Inc.
## Copyright (c) 2007-2019 Pivotal Software, Inc.  All rights reserved.

# Formats returned values e.g. to human-readable text or JSON.
defmodule RabbitMQ.CLI.FormatterBehaviour do
  @callback format_output(any, map()) :: String.t | [String.t]
  @callback format_stream(Enumerable.t, map()) :: Enumerable.t

  @optional_callbacks switches: 0,
                      aliases: 0

  @callback switches() :: Keyword.t
  @callback aliases() :: Keyword.t
end