@Deprecated
  public static <V> FluentFuture<V> from(FluentFuture<V> future) {
    return future;
  }
Unnecessary conversion, already have a fluent future. This method exists solely to detect
unnecessary conversion from a {@link FluentFuture}.
@deprecated you don't need to convert to a fluent future, it is already is
@param <V> value type
@param future future
@return same instance
mongo/src/org/immutables/mongo/concurrent/FluentFutures.java