hello_meta.dot

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    fontsize = 8
    node[
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        fillcolor=aliceblue
    ]
    nodesep = 0.3
    edge[dir=black,arrowtail=empty]


1029342636808[ label="{Who|+name:STRING\l}"]

1029342611320 -> 1029342636808[arrowtail=diamond, dir=both, headlabel="to_greet 1..*"]
1029342611320[ label="{HelloWordlModel|}"]

1029342626424[ label="{BOOL|}"]

1029342628312[ label="{FLOAT|}"]

1029342622648[ label="{STRING|}"]

1029342627368[ label="{INT|}"]

1029342624536[ label="{ID|}"]

1029342619816[ label="{BASETYPE|}"]
1029342619816 -> 1029342635864 [dir=back]
1029342619816 -> 1029342626424 [dir=back]
1029342619816 -> 1029342624536 [dir=back]
1029342619816 -> 1029342622648 [dir=back]

1029342635864[ label="{NUMBER|}"]
1029342635864 -> 1029342628312 [dir=back]
1029342635864 -> 1029342627368 [dir=back]


}