Mockk matching and overloaded function withArg

Hello I am trying to find a way to match an overloaded function inside of the verify using withArg

The doc doesnt really point this out

    every { getResponse.Ids } returns listOf(121212L)
    assert( client.getExtIds(Ids) )
    verify {
        client.getExtIdsCall().call(
            withArg {
                assertEquals(GetExtIdsRequest.builder()
                    .withIds("foo")
                    .withType("bar")
                    .build().hashCode(), it.hashCode()
                )
            }
        )
    }

Something like above. But unfortunately I cant because the client.getExtIdsCall().call() accepts two different types of objects. One of which has the hashCode I want. So the it can not be referred correctly to call the hashCode function

You can resolve this by explicitly specifying the type parameter of function withArg, e.g. if you want your parameter to be a Long, you can write:

withArg<Long> { ... }