 --> [ local path prefix ]/state_machine/initial_transitions/state_multiple_transitions.fpp:3:9
  |
3 |   state S {
  |         ^ state with substates has 2 initial transitions; only one is allowed
  |
 ::: [ local path prefix ]/state_machine/initial_transitions/state_multiple_transitions.fpp:4:5
  |
4 |     initial enter T
  |     --------------- initial transition defined here
  |
 ::: [ local path prefix ]/state_machine/initial_transitions/state_multiple_transitions.fpp:5:5
  |
5 |     initial enter U
  |     --------------- initial transition defined here

