code: def atlas_peer_has_fresh_zonefile_inventory( peer_hostport, peer_table=None ):
      
  
      fresh = False
      with AtlasPeerTableLocked(peer_table) as ptbl:
          if peer_hostport not in ptbl.keys():
              return False
  
          now = time_now()
          peer_inv = atlas_peer_get_zonefile_inventory( peer_hostport, peer_table=ptbl )
  
          # NOTE: zero-length or None peer inventory means the peer is simply dead, but we've pinged it
          if  ptbl[peer_hostport].has_key('zonefile_inventory_last_refresh') and \
              ptbl[peer_hostport]['zonefile_inventory_last_refresh'] + atlas_peer_ping_interval() > now:
  
              fresh = True
  
      return fresh
docs: Does the given atlas node have a fresh zonefile inventory?