@kotlin.Metadata
public class A {
    public method <init>(): void
    public synthetic static method foo$default(p0: A, p1: int, p2: int, p3: int, p4: java.lang.Object): void
    public method foo(p0: int, p1: int): void
}

@kotlin.Metadata
public final class B {
    public method <init>(): void
    public method foo(p0: int, p1: int): void
}

@kotlin.Metadata
public final class C {
    public method <init>(): void
}

@kotlin.Metadata
public final class IsOptionalKt {
    public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
    public final static method extFun(p0: int): void
}