public final class ExtensionPropertyKt {
    public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
    public final static method getExt(@org.jetbrains.annotations.NotNull p0: K): double
    public final static method setExt(@org.jetbrains.annotations.NotNull p0: K, p1: double): void
}


public final class K {
    private field value: long
    public method <init>(p0: long): void
    public final method getValue(): long
    public final method setValue(p0: long): void
}