# Functions
FromDomain converts domain.Subscription model to a MongoDB document representation.
NewSubscriptionRepository creates a new instance of SubscriptionRepository.
ToDomain converts MongoDB document representation of Subscription to domain model.
ToDomainSlice converts slice of MongoDB documents to slice of domain models.
# Constants
CollectionName is the name of Subscription collection.
DocumentLimitsPerQuery limits query result to a certain number of documents.
# Structs
Filter represents a document in MongoDB corresponding to domain.Filter.
Subscription represents a document in MongoDB corresponding to domain.Subscription.
SubscriptionRepository is MongoDB implementation of SubscriptionRepository.