anchor.diff:  
               ct:pal("PRBR state after leases expired"),
               print_prbr_data(kv_db),
  -            ok = print_leases_data(),
  +            _ = print_leases_data(),
   
               %% check data integrity
               ct:pal("check data integrity"),
  
positive.code: 
              ct:pal("PRBR state after node was inserted"),
              print_prbr_data(kv_db),
              ok = print_leases_data(),
  
              true
      end.
  
negative.code: 
              ct:pal("PRBR state before node is removed"),
              print_prbr_data(kv_db),
              _ = print_leases_data(),
  
              %% get relative range of node to remove and check if it is not to large
              {true, LL} = lease_checker:get_dht_node_state_unittest(comm:make_global(RandomNode), lease_list),
  