def METHOD_NAME():
    vmhash = hashlib.md5()
    for vmfilename in VM_SNAPSHOT_FILES:
        vmfilepath = os.path.join(utils.DART_DIR, 'runtime', 'vm', vmfilename)
        with open(vmfilepath, 'rb') as vmfile:
            vmhash.update(vmfile.read())
    return vmhash.hexdigest()