package public fun box(): kotlin.Unit public fun f(): R public operator fun kotlin.Int.plusAssign(/*0*/ y: R): kotlin.Unit public final class R { public constructor R() public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String }