AppInnerNavGraph.kt

val sharedViewModelHolder = SharedViewModelHolder<PostCreateViewModel>()
navGraphBuilder.navigation(
    route = PostCreateDestination.RootCreatePostRoute,
    startDestination = PostCreateDestination.SelectCreatablePost.createRoute()
) {
    composable(PostCreateDestination.SelectCreatablePost) {
        SelectCreatablePostScreen(
            modifier = modifier,
            navController = navController,
            sharedViewModel = sharedViewModelHolder.createNewSharedViewModel()
        )
    }
    composable(PostCreateDestination.CreatePost) { navBackStackEntry ->
        val arguments: PostCreateDestination.CreatePost.Arguments =
            PostCreateDestination.CreatePost.rememberArguments(navBackStackEntry)
        PostCreateScreen(
            modifier = modifier,
            navController = navController,
            sharedViewModel = sharedViewModelHolder.getSharedViewModel(),
            type = arguments.nonNullablePostType
        )
    }
    composable(PostCreateDestination.ChooseSpace) {
        ChooseSpaceScreen(
            modifier = modifier,
            navController = navController,
            sharedViewModel = sharedViewModelHolder.getSharedViewModel()
        )
    }
}