NewService initializes service tag.

NewTemplateService initializes service template service.

Field is a field for a single template.

Service is a type that manages business process.

Tag is the tag to be managed.

TagValue is one of the value for a tag.

Template is a template of a tag for a resource.

TemplateService is a type of service that manages business process.

TagRepository is a contract to communicate with the primary store.

TagTemplateRepository is a contract to communicate with the primary store.