List of existing languages per predicate

When I query for the schema of my DGraph cluster with schema { }, I get:

{
  "data": {
    "schema": [
      {
        "predicate": "http://www.w3.org/2000/01/rdf-schema#label",
        "type": "string",
        "index": true,
        "tokenizer": [
          "hash"
        ],
        "lang": true
      },
...

Could the schema provide a list of existing languages for each @lang predicate, like:

{
  "data": {
    "schema": [
      {
        "predicate": "http://www.w3.org/2000/01/rdf-schema#label",
        "type": "string",
        "index": true,
        "tokenizer": [
          "hash"
        ],
        "lang": true,
        "languages": ["", "en", "zh", "de"]
      },
...

That would be great, because then I can know which languages exist for which predicates, and which languages I do not need to bother querying, because there will be no answer. Is this something easy to add?

I think so, but you should do this at issues/dgraph, not Users/Dgraph. Or is it just a question?

Changed it to be a feature request.

You are right, sorry!