digraph "ABI diff" {
  "0" [shape=rectangle, label="'interface'"]
  "1" [label="'enum Foo getEnum(enum Foo)'"]
  "2" [label="'enum Foo(enum Foo)'"]
  "3" [color=red, shape=rectangle, label="'enum Foo'"]
  "3" -> "3:0"
  "3:0" [color=red, label="enumerator 'FOO_ZERO' (0) was removed"]
  "3" -> "3:1"
  "3:1" [color=red, label="enumerator 'FOO_TWO' value changed from 2 to 42"]
  "3" -> "3:2"
  "3:2" [color=red, label="enumerator 'FOO_FOUR' (4) was added"]
  "2" -> "3" [label="return"]
  "2" -> "3" [label="parameter 1"]
  "1" -> "2" [label=""]
  "0" -> "1" [label=""]
}