CompositeNDP                                                                      
│    provides   roi   SB(≥0) $ │ requires   total_satisfied_od_pairs   SB(≥0)     
│  2 nodes, 0 edges                                                               
│   connected rec: ✓                                                              
│  no connections                                                                 
│  Unconnected func:                                                              
│   {CFunction(dp='_res_total_satisfied_od_pairs', s='total_satisfied_od_pairs')} 
│  Unconnected res:                                                               
│   {CResource(dp='_fun_roi', s='roi')}