doSuspendedApiCall.kt

import kotlin.reflect.KSuspendFunction1 // You have to import this manually
import kotlin.reflect.KSuspendFunction2 // You have to import this manually

inline suspend fun <reified Service: RetroService, Result> doSuspendedApiCall(
    services: List<RetroService>,
    apiCall: KSuspendFunction1<Service, Result>
): Result? {
    // identical to doApiCall
}

inline suspend fun <reified Service: RetroService, Input, Result> doSuspendedApiCallWithParam(
    services: List<RetroService>,
    apiCall: KSuspendFunction2<Service, Input, Result>,
    input: Input
): Result? {
    // identical to doApiCallWithParam
}