code: public <G, ERR> OrFuture<Vector<G>, Every<ERR>>
    combined(Iterable<? extends OrFuture<? extends G, ? extends Every<? extends ERR>>> input) {
      return combined(input, Vector.collector());
    }
docs: Combines an Iterable of OrFutures of type OrFuture&lt;G, EVERY&lt;ERR&gt;&gt; (where
  EVERY is some subtype of Every) into a single OrFuture of type
  OrFuture&lt;Vector&lt;G&gt;, Every&lt;ERR&gt;&gt;.
  <p>
  This method differs from sequence in that it will accumulate every error in the returned
  future before completing.
  
  @param <G>   the success type
  @param <ERR> the failure type
  @param input the iterable containing OrFutures to combine
  @return an OrFuture that completes with all the success values or with all the errors