The sample consumer gen server has a undefined variable on one `handle_info` return.

Fix error in docs for sample consumer GenServer

* Support :closing case in AMQP.Channel.open/2

* Revert changes, apply fix to AMQP.Channel.open/2 instead

* Fix test name typo

* Simplify do_open_channel case clauses - just wrap into tuple


Return type for :amqp_connection.open_channel is just

  {:ok, channel_pid} | error

So simply wrapping to tuple should be enough

* Clarify that `prefetch_*` options limit unacked messages

See https://www.rabbitmq.com/consumer-prefetch.html

* Update lib/amqp/basic.ex

Co-authored-by: Tatsuya Ono <[email protected]>

Co-authored-by: Tatsuya Ono <[email protected]>

…terwards. (#184)

* Handling shutdown reason in direct_consumer, and clean up consumer.
* Introduced ignore_shutdown flag to the state of the direct_consumer, and fixed deprecation warning in a test case.
* Tiny formatting to make it uniform

* Revert unwanted change

* Mix format

* Update the options

* Update moduledoc

* Don't send DOWN when consumer is deleted

* Tweak moduledoc

* update the option structure