# Functions
NewDelivery returns a new Delivery with db connection.
NewDeliveryAttempt returns a new DeliveryAttempt with db connection.
NewMessage returns a new Message with db connection.
NewMigration will create a implementation of hammer.MigrationRepository.
NewSubscription returns a new Subscription with db connection.
NewTopic returns a new Topic with db connection.
# Structs
Delivery is a implementation of hammer.DeliveryRepository.
DeliveryAttempt is a implementation of hammer.DeliveryAttemptRepository.
Message is a implementation of hammer.MessageRepository.
Migration is a implementation of hammer.MigrationRepository.
Subscription is a implementation of hammer.SubscriptionRepository.
Topic is a implementation of hammer.TopicRepository.