{
  "sha1": "171zpjgqcdkiff57r3hzsg99m1bjv0f",
  "insertion": {
    "when": "2024-05-30T20:48:19.586Z",
    "url": "http://forum.plantuml.net/9031/do-you-plan-for-conditional-code-in-macros?show=9167#a9167",
    "user": "plantuml@gmail.com"
  },
  "humhash": "luxiti-51-jare370"
}
@startuml
'!preprocessorV2
!procedure msg(source, destination)
source --> destination
!endprocedure

Alice -> Bob : A
@enduml
