IModel not present in 7.0.0-alpha2

[himanshuz2]

Describe the bug

This breaks backward compatibility. Interfaces should not be removed when updating packages.

Reproduction steps

Update nuget to RabbitMQ.Client 7.0.0-alpha2. Existing code such as this
private IModel _channel = null;
private IModel _consumerChannel = null;
break.

Expected behavior

Interfaces should not be removed when updating packages.

Additional context

I want to begin using the async functionality but I don't understand why renaming or dropping IModel Interface.