@JvmOverloads fun postLink(linkInfo: LinkInfo, content: String, permission: Permission = Story.Permission.PUBLIC, : Boolean = true, androidExecParams: Map<String, String>? = null, iosExecParams: Map<String, String>? = null, androidMarketParams: Map<String, String>? = null, iosMarketParams: Map<String, String>? = null): Single<StoryPostResult>