 --> [ local path prefix ]/tlm_packets/duplicate_set_name.fpp:7:3
  |
7 | /   telemetry packets P {
8 | |
9 | |   }
  | |___^ duplicate telemetry packet set P
  |
 ::: [ local path prefix ]/tlm_packets/duplicate_set_name.fpp:3:3
  |
3 | /   telemetry packets P {
4 | |
5 | |   }
  | |___- previous set is here

