NewAuthedLabelService constructs an instance of an authorizing label serivce.

NewHTTPEmbeddedHandler create a label handler for embedding in other service apis.

ErrFailureGeneratingID occurs ony when the random number generator cannot generate an ID in MaxIDGenerationN times.

ErrLabelNotFound occurs when a label cannot be found by its ID.

NotUniqueIDError occurs when attempting to create a Label with an ID that already belongs to another one.