anchor.diff:  
   # Group Service Status
   
  +## Requests Metrics [/requests_metrics{?interval,api_ids}]
  +
  +### Get Requests Metrics [GET]
  +
  ++ Parameters
  +    + `interval`: `5 minute` (string, optional) - Interval for time-based aggregation of latencies data. Supports following formats: `5 minites`, `1 minute`, `1 hour, `5 hours`, `1 day`, `5 days`. Term count can be any number.
  +    + `api_ids`: `api_id1,api_id2` (string, optional) - List of API IDs to filter Requests, separated by comma.
  +
  ++ Response 200 (application/json)
  +    + Attributes (Response_OK)
  +        + data (`Metrics`)
  +
   ## Cluster Status [/annon_status]
   
   ### Get Cluster Status [GET]
  
positive.code: + run_queue: 0 (number)
  + uptime: 239.873 (number) - Seconds since node VM start.
  
  ## APIs
  ### `API__Request`
  + name: my_api (string, required) - Unique name for API.
  
negative.code: + latencies
      + gateway: 100 (number) - Latency in **micro**seconds.
      + upstream: 100 (number) - Latency in **micro**seconds.
      + client_request: 100 (number) - Latency in **micro**seconds.
  
  ### `Requests_Status_Codes`
  + api_id: 56c31536a60ad644060041af (string) - Unique ID for API.
  + count: 1 (number) - Count of occurances or `status_code` in a given `tick - interval` range.
  + status_code: 301 (number) - HTTP status code.
  + tick: `2017-04-20T19:15:00Z` (string, required) - ISO 8601 date and time in UTC timezone.