Description:

Generates a migration file for deleting and a creating a DynamoDB
sessions table, and a configuration file for the session store.

Example:

rails generate dynamo_db:session_store_migration <MIGRATION_NAME>

This will create:
    db/migrate/#{VERSION}_#{MIGRATION_NAME}.rb
    config/dynamo_db_session_store.yml

The migration will be run when the command rake db:migrate is run
in the command line.