These are entrypoints for specific components to be used carefully by the consumers. If you're using one of these entrypoints we are assuming you know what you are doing. So it means that code-splitting and tree-shaking should be done on the consumer/product side.
import LayoutManagerWithViewController from '@atlaskit/navigation-next/LayoutManagerWithViewController';
atlaskit/navigation-next/LayoutManagerWithViewController
atlaskit/navigation-next/ItemsRenderer
atlaskit/navigation-next/SkeletonContainerView
atlaskit/navigation-next/NavigationProvider
atlaskit/navigation-next/AsyncLayoutManagerWithViewController
atlaskit/navigation-next/GlobalNavigationSkeleton
atlaskit/navigation-next/view-controller
atlaskit/navigation-next/ui-controller