GetDefaultVerifier gets the default track 1 verifiers which verifies the following: - verifies that the package name matches the leaf directory name - verifies that the package path only consists of lower case letters - verifies that the package path must follow the desired directory structure.

List lists all the track 1 SDK packages under the root directory.

VerifyWithDefaultVerifiers verifies packages under the root directory with the given exceptions.

Package represents a track 1 SDK package.