Should we use $ref to reference the identify of something that must be externally defined (i.e., the function in a functionimport or entity type of an entity set or base term in a term)?
In places where we choose $ref: should additional keywords that refine/decorate the use of the referenced element be placed next to $ref within the reference object, or should the reference be wrapped in an "allOf":[
{"$ref":"..."}] construct and the additional keywords be placed next to allOf?