Embabel id. Will be synthetic.
Neighbors of this retrievable object. Allows navigation of a graph
URI for the content. May be a URL. Not generated by Embabel, but from the source.
EmbeddableValue defaults to infoString
Labels of the entity. In Neo, this might include multiple labels. In a relational database, this might be a single table name.
Properties to persist Subclasses can add their own properties but must call super to include these.