Imports github.com/Microsoft/azure-vhd-utils/vhdcore/bat github.com/Microsoft/azure-vhd-utils/vhdcore/block github.com/Microsoft/azure-vhd-utils/vhdcore/footer github.com/Microsoft/azure-vhd-utils/vhdcore/header github.com/Microsoft/azure-vhd-utils/vhdcore/reader Standard library imports fmt os path/filepath