@NotNull fun <A : java.util.Collection<? extends C>, B : java.util.Collection<C>, C> alsoAddTo(@NotNull $receiver: A, @NotNull b: B): A@NotNull fun <A : java.util.Map<?, ? extends C>, B : java.util.Collection<C>, C> alsoAddTo(@NotNull $receiver: A, @NotNull b: B): A@<?> fun <A, B : java.util.Collection<A>> alsoAddTo(@<?> $receiver: A, @NotNull b: B): A