// everything is within Dispatchers.Io context

commonDependency {
    suspend fun fetchResult() {
        log ("fetching result...")
        // get from some async source
        return result
    }
}
useCaseA {
    suspend fun execute() {
        return commonDependency.getResult()?.also { /* do something */ }
    }
}
useCaseB {
    suspend fun execute() {
        return commonDependency.getResult()?.also { /* do something */ }
    }
}

fun main() {
    useCaseA.execute()
    useCaseB.execute()
}

result behavior:
fetching result...
fetching result...
:useCaseA finished execution
:useCaseB finished execution

wanted behavior:
fetching result...
:useCaseA finished execution
:useCaseB finished execution