Dynamic object keys.

[JamieClayton7]

I have a json field that stores a "sales_data" object. This object has keys that reference a "sale_uid" that I wish to be generated by synth. For example:

{ "sale_uids": [ 123, 321, 456 ], "sales_data": { 123: {...}, 321: {...}, 456: {...} } }

Is it possible to generate these dynamic object keys using something similar to the @ ref functionality in same_as?