code: def atlas_peer_update_health( peer_hostport, received_response, peer_table=None ):
      
  
      with AtlasPeerTableLocked(peer_table) as ptbl:
          if peer_hostport not in ptbl.keys():
              return False
  
          # record that we contacted this peer, and whether or not we useful info from it
          now = time_now()
  
          # update timestamps; remove old data
          new_times = []
          for (t, r) in ptbl[peer_hostport]['time']:
              if t + atlas_peer_lifetime_interval() < now:
                  continue
              
              new_times.append((t, r))
  
          new_times.append((now, received_response))
          ptbl[peer_hostport]['time'] = new_times
  
      return True
docs: Mark the given peer as alive at this time.
      Update times at which we contacted it,
      and update its health score.
  
      Use the global health table by default, 
      or use the given health info if set.