raulraja

package com.fortyseven.fptraining

import arrow.core.Either
import arrow.core.right
import arrow.effects.IO
import arrow.effects.extensions.io.fx.fx

data class Account(val balance: Int)
data class AccountEntity(val balance: Int)

leandrob13

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.function.Function;

public class FutureOps {

  public static  <T> CompletableFuture<List<T>> sequence(List<CompletableFuture<T>> ls) {
    return ls.stream()
      .reduce(