See #17798
/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */
import type {ReactContext} from 'shared/ReactTypes';
import type {Source} from 'shared/ReactElementType';
import type {Fiber} from 'react-reconciler/src/ReactFiber';
import type {
  ComponentFilter,
  ElementType,