LiveData, Flow

 //implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.2.0'
 
 val plants: LiveData<String> = liveData {
     emit("Mango tree")
     delay(500)
     emit("JackFruit tree")
}

val fruits: Flow<String> = flow {
     emit("Apple")
     delay(500)
     emit("JackFruit")
}