@startuml enum example.Foo { SPAM: SPAM HAM: HAM } class example.Bar { EGGS: List[str] } interface example.greeting << (F,#FF7700) function >> { .. Inputs .. name: Union[Foo, None] .. Returns .. Bar } example.Foo --o example.greeting example.Bar o-- example.greeting @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art