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Created
May 6, 2023 05:37
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lively-gorge-9708
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class Serializable { | |
String toJson() => 'json'; | |
} | |
void main() { | |
switch (Serializable() as dynamic) { | |
case dynamic(:final Object? Function() toJson): | |
print(toJson()); | |
case _: | |
throw ArgumentError('Not serializable'); | |
} | |
} |
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