composedModel — the model which is being composed
key — the key on an object being saved which will contained the composed models.
relationshipName — the name of the relationship that is created between a root model and its composed models. These relationships are always outgoing.
Include options
model - the seraph-model that will be read
rel - the relationship relating the root node and this model
Compose function
Include options
Inconsistency in naming is confusing.