code: @ReplacedBy("com.google.common.collect.Iterators#concat() or com.google.common.collect.Iterables#concat()")
      public static <T> Iterator<T> getMetaIterator (Iterable<Iterator<T>> metaIterable)
      {
          return new MetaIterator<T>(metaIterable);
      }
docs: Returns an Iterator that iterates over all the elements contained within the Iterators
  within the specified Iterable.
  
  @param metaIterable an iterable of Iterators.