Downloads the specified bundles for the build execution. The task will take the specified bundles and put them in a build directory which is accessible during build execution. Bundle "downloading" doesn't necessarily involve network communication. Downloading is merely retrieving the bundles from the repository, which may be remote or local to the current machine. When a bundle is downloaded, it is put to a given path inside the build directory. The bundles will be accessible to other tasks during the build execution. This task doesn't perform any dependency resolution. To resolve dependencies, use the nest.dependency.resolve() task.