@Composable
fun Residencelist(){
    coreApiService.get("${BASE_URL}list/") { response: String ->
        val response = Gson().fromJson(response, ResponseResidences::class.java)
        MaterialTheme {
            Column(Modifier.padding(bottom = 1.dp).fillMaxWidth()) {
                VerticalScroller() {
                    Column(Modifier.padding(3.dp).fillMaxWidth()) {
                        response.residences!!.forEach {
                            if (it != null) {
                                newCarrouselCard(it.name!!,
                                    it.mainImage!!,
                                    it.additionalInformation!!.images,
                                    it.residenceDescription!!,
                                    "${it.price} ${it.currency}")
                                    Divider(height = 10.dp)
                            } else newCard("Residences not found")
                        }
                    }
                }
            }
        }
    }
}

Functions which invoke @Composable functions must be marked with the @Composable annotation

val

suspend

var response by state<ResponseResidences?> { null }
launchInComposition(url) {
    response = suspendingGet(url)
}

if (response == null) {
    // return, or show a loading state
    return
}

MaterialTheme {
    // the rest of your UI

Gson

@Composable