Method contains

corpus/java/training/guava/collect/Iterators.java:209–211

Returns true if iterator contains element.

(Iterator<?> iterator, @Nullable Object element)

   * Returns {@code true} if {@code iterator} contains {@code element}.
   */
  public static boolean contains(Iterator<?> iterator, @Nullable Object element) {
    return any(iterator, equalTo(element));
  }

  /**
   * Traverses an iterator and removes every element that belongs to the