+- CompilationUnit[@PackageName = ""]
   +- ImportDeclaration[@ImportOnDemand = false, @ImportedName = "a", @ImportedSimpleName = "a", @ModuleImport = false, @PackageName = "", @Static = false]
   +- EmptyDeclaration[]
   +- ImportDeclaration[@ImportOnDemand = false, @ImportedName = "b", @ImportedSimpleName = "b", @ModuleImport = false, @PackageName = "", @Static = false]
   +- ClassDeclaration[@Abstract = false, @Annotation = false, @Anonymous = false, @BinaryName = "Foo", @CanonicalName = "Foo", @EffectiveVisibility = Visibility.V_PUBLIC, @Enum = false, @Final = false, @Interface = false, @Local = false, @Nested = false, @PackageName = "", @Record = false, @RegularClass = true, @RegularInterface = false, @SimpleName = "Foo", @Static = false, @TopLevel = true, @UnnamedToplevelClass = false, @Visibility = Visibility.V_PUBLIC]
      +- ModifierList[@EffectiveModifiers = (JModifier.PUBLIC), @ExplicitModifiers = (JModifier.PUBLIC)]
      +- ClassBody[@Empty = true, @Size = 0]
