@ParametricNullness T instance) {
    return new SupplierOfInstance<>(instance);
  }

  private static final class SupplierOfInstance<T extends @Nullable Object>
      implements Supplier<T>, Serializable {
    @ParametricNullness final T instance;

    SupplierOfInstance(@ParametricNullness T instance) {
      this.instance = instance;
    }

    @Override
    @ParametricNullness
    public T get() {

            }
            buf.append('}');
        } else if (obj instanceof Integer || obj instanceof Long || obj instanceof Float || obj instanceof Double) {
            buf.append(obj);
        } else if (obj instanceof Boolean) {
            buf.append(obj.toString());
        } else if (obj instanceof Date) {

        response.jobLogId("log-id-xyz").status(Status.OK);
        final ApiResult result = response.result();
        assertNotNull(result);
        assertNotNull(result.response);
        assertTrue(result.response instanceof ApiStartJobResponse);
        final ApiStartJobResponse resultResponse = (ApiStartJobResponse) result.response;
        assertEquals("log-id-xyz", resultResponse.jobLogId);
        assertEquals(0, resultResponse.status);
    }

      @ParametricNullness T instance) {
    return new SupplierOfInstance<>(instance);
  }

  private static final class SupplierOfInstance<T extends @Nullable Object>
      implements Supplier<T>, Serializable {
    @ParametricNullness final T instance;

    SupplierOfInstance(@ParametricNullness T instance) {
      this.instance = instance;
    }

    @Override
    @ParametricNullness
    public T get() {

    // implementation, it _may_ require iteration over the entire collection (e.g., a
    // FilteredCollection), which we want to avoid.
    if (values instanceof List || values instanceof ImmutableCollection) {
      return uniqueIndex(
          values.iterator(),
          keyFunction,
          ImmutableMap.builderWithExpectedSize(((Collection<?>) values).size()));
    }

    // implementation, it _may_ require iteration over the entire collection (e.g., a
    // FilteredCollection), which we want to avoid.
    if (values instanceof List || values instanceof ImmutableCollection) {
      return uniqueIndex(
          values.iterator(),
          keyFunction,
          ImmutableMap.builderWithExpectedSize(((Collection<?>) values).size()));
    }

   * is the order of the first appearance of each key in this iterable.
   *
   * <p>When there are multiple instances of a key in this iterable, it is unspecified whether
   * {@code valueFunction} will be applied to more than one instance of that key and, if it is,
   * which result will be mapped to that key in the returned map.
   *

   * is the order of the first appearance of each key in this iterable.
   *
   * <p>When there are multiple instances of a key in this iterable, it is unspecified whether
   * {@code valueFunction} will be applied to more than one instance of that key and, if it is,
   * which result will be mapped to that key in the returned map.
   *

            new ForwardingRunnable(runnable) {

              @SuppressWarnings("EqualsHashCode")
              @Override
              public boolean equals(@Nullable Object o) {
                if (o instanceof ForwardingRunnable) {
                  ForwardingRunnable that = (ForwardingRunnable) o;
                  return runnable.equals(that.runnable);
                }
                return false;
              }

            new ForwardingRunnable(runnable) {

              @SuppressWarnings("EqualsHashCode")
              @Override
              public boolean equals(@Nullable Object o) {
                if (o instanceof ForwardingRunnable) {
                  ForwardingRunnable that = (ForwardingRunnable) o;
                  return runnable.equals(that.runnable);
                }
                return false;
              }