throw PermittedMetaException.ISE;
      }
    }

    private List<E> getElements() {
      List<E> elements = new ArrayList<>();
      Helpers.addAll(elements, previousElements);
      Helpers.addAll(elements, Helpers.reverse(nextElements));
      return elements;
    }
  }

  public enum KnownOrder {
    KNOWN_ORDER,
    UNKNOWN_ORDER
  }

        writer.node("graph TD")
        for (element in elements) {
            if (element is Platform) {
                writer.platform(element)
            } else {
                writer.element(element)
            }
        }
        println(endDiagram)
    }

    private fun NodeWriter.platform(platform: Platform) {
        println()

      }

      @Override
      public T set(int index, T element) {
        return data.set(index, element);
      }

      @Override
      public boolean add(T element) {
        return data.add(element);
      }

      @Override
      public void add(int index, T element) {
        data.add(index, element);
      }

      @Override
      public T remove(int index) {

        throw PermittedMetaException.ISE;
      }
    }

    private List<E> getElements() {
      List<E> elements = new ArrayList<>();
      Helpers.addAll(elements, previousElements);
      Helpers.addAll(elements, Helpers.reverse(nextElements));
      return elements;
    }
  }

  public enum KnownOrder {
    KNOWN_ORDER,
    UNKNOWN_ORDER
  }

      }

      @Override
      public T set(int index, T element) {
        return data.set(index, element);
      }

      @Override
      public boolean add(T element) {
        return data.add(element);
      }

      @Override
      public void add(int index, T element) {
        data.add(index, element);
      }

      @Override
      public T remove(int index) {

    @Override
    public abstract void forEach(Consumer<? super T> consumer);

    /**
     * Creates a new list with the given element as the first element in the list.
     *
     * So {@code (b : c).plus(a) == (a : b : c)}
     */
    @CheckReturnValue
    public abstract PersistentList<T> plus(T element);

    public abstract boolean isEmpty();

    private PersistentList() {}

    }

    def "can set elements as convention of file collection"() {
        buildFile """
            def files = objects.fileCollection().convention('b')
            def elements = files.elements

            def name = 'a'
            files.from(name)

            assert elements.get().asFile == [file('b'), file('a')]
        """

        expect:
        succeeds()

      numCallsToNewTargetIterator++;
      return Lists.newArrayList(1).iterator();
    }

    @Override
    protected void verify(List<Integer> elements) {
      numCallsToVerify++;
      super.verify(elements);
    }
  }

  public void testVerifyGetsCalled() {
    TesterThatCountsCalls tester = new TesterThatCountsCalls();

    tester.test();

    assertEquals(

  );
}

def TF_RollOp : TF_Op<"Roll", [Pure]> {
  let summary = "Rolls the elements of a tensor along an axis.";

  let description = [{
The elements are shifted positively (towards larger indices) by the offset of
`shift` along the dimension of `axis`. Negative `shift` values will shift
elements in the opposite direction. Elements that roll passed the last position

      numCallsToNewTargetIterator++;
      return Lists.newArrayList(1).iterator();
    }

    @Override
    protected void verify(List<Integer> elements) {
      numCallsToVerify++;
      super.verify(elements);
    }
  }

  public void testVerifyGetsCalled() {
    TesterThatCountsCalls tester = new TesterThatCountsCalls();

    tester.test();

    assertEquals(