def describe(id, version = nil)
      wf_event_id?(id)
      wf_version?(version) if version
      fragments = [id]
      fragments += ['history', version] if version
      api.get(fragments.uri_concat)
    end
def describe(id, version = nil)
      wf_event_id?(id)
      wf_version?(version) if version
      fragments = [id]
      fragments += ['history', version] if version
      api.get(fragments.uri_concat)
    end
GET /api/v2/event/id
 Get a specific event / Get a specific historical version of a
 specific event.

 @param id [String] ID of the event
 @param version [Integer] version of event
 @return [Wavefront::Response]