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<?php interface invokable { public function __invoke(int $int) : string; } class Foo implements invokable { } $foo = new Foo();
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Class Foo contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (invokable::__invoke) in /in/q0GLm on line 8
Process exited with code 255.

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