Get top agent for emissions

{
  "suite_id": 0,
  "computed_at": "2019-08-24T14:15:22Z",
  "top_agent_version_id": "f2a366a1-d8b0-4003-8824-24eee4c9bca1",
  "top_miner_hotkey": "string",
  "top_score": 0,
  "policy": {},
  "challenge_threshold": 0,
  "emission_weight": 0,
  "margin": 0
}