code: public JSONObject updateByContract(String contractId, String ts, HashMap<String, String> params) throws JSONException {   
          return oClient.put("/team/v3/snapshots/contracts/" + contractId + "/" + ts, params);
      }
docs: Update snapshot by specific contract
  
  @param   contractId Contract ID
  @param   ts Timestamp
  @param   params Parameters
  @throws	JSONException If error occurred
  @return	{@link JSONObject}