message: Added bar button typings to package
diff: import { Component, ReactNode } from 'react';
  +import { ImageURISource } from 'react-native';
  import { StateNavigator, State } from 'navigation';
  /**
  @@ -19,3 +20,27 @@ export interface SceneProps {
  * Renders the scene for the crumb
  */
  export class Scene extends Component<SceneProps> { }
  +
  +/**
  + * Renders buttons in the left UI bar
  + */
  +export class LeftBarIOS extends Component { }
  +
  +/**
  + * Renders buttons in the right UI bar
  + */
  +export class RightBarIOS extends Component { }
  +
  +/**
  + * Defines the Bar Button Props contract
  + */
  +export interface BarButtonIOSProps {
  + title?: string;
  + image?: ImageURISource;
  + onPress?: () => void;
  +}
  +
  +/**
  + * Renders a button in the UI bar
  + */
  +export class BarButtonIOS extends Component<BarButtonIOSProps> { }
  