message: Typed shared elements array
diff: @@ -3,7 +3,7 @@ import * as React from 'react';
  import Motion from './Motion';
  import Scene from './Scene';
  import withStateNavigator from './withStateNavigator';
  -import { NavigationMotionProps } from './Props';
  +import { NavigationMotionProps, SharedElement } from './Props';
  class NavigationMotion extends React.Component<NavigationMotionProps, any> {
  private sharedElements = {};
  @@ -69,7 +69,7 @@ class NavigationMotion extends React.Component<NavigationMotionProps, any> {
  return [];
  var oldSharedElements = this.sharedElements[oldUrl.split('crumb=').length - 1];
  var mountedSharedElements = this.sharedElements[crumbs.length];
  - var sharedElements = [];
  + var sharedElements: SharedElement[] = [];
  for(var name in mountedSharedElements) {
  if (oldSharedElements && oldSharedElements[name]) {
  sharedElements.push({
  