*
   * @param element the element to count occurrences of
   * @return the number of occurrences of the element in this multiset; possibly zero but never
   *     negative
   */
  int count(@CompatibleWith("E") @Nullable Object element);

  // Bulk Operations

  /**
   * Adds a number of occurrences of an element to this multiset. Note that if {@code occurrences ==

   *
   * @param element the element to count occurrences of
   * @return the number of occurrences of the element in this multiset; possibly zero but never
   *     negative
   */
  int count(@CompatibleWith("E") @Nullable Object element);

  // Bulk Operations

  /**
   * Adds a number of occurrences of an element to this multiset. Note that if {@code occurrences ==

    }

    /**
     * Returns the index of the first occurrence of the specified object in the array.
     *
     * @param <T>
     *            the type of the array elements
     * @param array
     *            the array
     * @param obj
     *            the object to search for
     * @return the index of the first occurrence of the object in the array
     */

    }

    /**
     * Checks if a value represents an occurrence-based search modifier.
     * Currently supports "allintitle" and "allinurl" modifiers.
     *
     * @param value the value to check
     * @return true if the value is an occurrence modifier, false otherwise
     */
    protected boolean isOccurrence(final String value) {
        return "allintitle".equals(value) || "allinurl".equals(value);

    E[] array = createSamplesArray();
    array[getNumElements() / 2] = e0();
    collection = getSubjectGenerator().create(array);
    assertEquals(
        "lastIndexOf(duplicate) should return index of last occurrence",
        getNumElements() / 2,
        getList().lastIndexOf(e0()));
  }

    E[] array = createSamplesArray();
    array[getNumElements() / 2] = e0();
    collection = getSubjectGenerator().create(array);
    assertEquals(
        "indexOf(duplicate) should return index of first occurrence", 0, getList().indexOf(e0()));
  }

    E[] array = createSamplesArray();
    array[getNumElements() / 2] = e0();
    collection = getSubjectGenerator().create(array);
    assertEquals(
        "lastIndexOf(duplicate) should return index of last occurrence",
        getNumElements() / 2,
        getList().lastIndexOf(e0()));
  }

	for _, etag := range etags {
		if etag == "" {
			continue
		}
		etagOccurrenceMap[etag]++
	}

	maxima = 0 // Counter for remembering max occurrence of elements.
	latest := ""

	// Find the common cardinality from previously collected
	// occurrences of elements.
	for etag, count := range etagOccurrenceMap {
		if count < maxima {
			continue
		}

		// We are at or above maxima
		if count > maxima {

    E[] array = createSamplesArray();
    array[getNumElements() / 2] = e0();
    collection = getSubjectGenerator().create(array);
    assertEquals(
        "indexOf(duplicate) should return index of first occurrence", 0, getList().indexOf(e0()));
  }

    }

    /**
     * Test get method with existing type
     */
    @Test
    @DisplayName("Get should return first occurrence of type")
    void testGetExistingType() {
        List<AvPair> pairs = new LinkedList<>();
        AvFlags flags1 = new AvFlags(0x11111111);
        AvFlags flags2 = new AvFlags(0x22222222);
        pairs.add(flags1);