third_party/perfetto/test/trace_processor/diff_tests/android/android_system_property_slice.out

"id","type","name","id","ts","dur","type","name"
1,"track","DeviceStateChanged",0,1000,0,"internal_slice","some_state_from_sysprops"
1,"track","DeviceStateChanged",1,3000,0,"internal_slice","some_state_from_atrace"