code: def atlas_peer_set_zonefile_inventory( peer_hostport, peer_inv, peer_table=None ):
      
      with AtlasPeerTableLocked(peer_table) as ptbl:
          if peer_hostport not in ptbl.keys():
              return None 
  
          ptbl[peer_hostport]['zonefile_inv'] = peer_inv
  
      return peer_inv
docs: Set this peer's zonefile inventory