How to use the nanopb.nanopb.generator.nanopb_generator.Globals function in nanopb

data = io.open(sys.stdin.fileno(), "rb").read()

    request = plugin_pb2.CodeGeneratorRequest.FromString(data)

    try:
        # Versions of Python prior to 2.7.3 do not support unicode
        # input to shlex.split(). Try to convert to str if possible.
        params = str(request.parameter)
    except UnicodeEncodeError:
        params = request.parameter

    import shlex
    args = shlex.split(params)
    options, dummy = optparser.parse_args(args)

    Globals.verbose_options = options.verbose

    response = plugin_pb2.CodeGeneratorResponse()

    # Google's protoc does not currently indicate the full path of proto files.
    # Instead always add the main file path to the search dirs, that works for
    # the common case.
    import os.path
    options.options_path.append(os.path.dirname(request.file_to_generate[0]))

    # Process any include files first, in order to have them
    # available as dependencies
    other_files = {}
    for fdesc in request.proto_file:
        other_files[fdesc.name] = parse_file(fdesc.name, fdesc, options)

    for filename in request.file_to_generate:

# Check if there is a separate .options file
    had_abspath = False
    try:
        optfilename = options.options_file % os.path.splitext(filename)[0]
    except TypeError:
        # No %s specified, use the filename as-is
        optfilename = options.options_file
        had_abspath = True

    paths = ['.'] + options.options_path
    for p in paths:
        if os.path.isfile(os.path.join(p, optfilename)):
            optfilename = os.path.join(p, optfilename)
            if options.verbose:
                sys.stderr.write('Reading options from ' + optfilename + '\n')
            Globals.separate_options = read_options_file(open(optfilename, "rU"))
            break
    else:
        # If we are given a full filename and it does not exist, give an error.
        # However, don't give error when we automatically look for .options file
        # with the same name as .proto.
        if options.verbose or had_abspath:
            sys.stderr.write('Options file not found: ' + optfilename + '\n')
        Globals.separate_options = []

    Globals.matched_namemasks = set()

    # Parse the file
    file_options = get_nanopb_suboptions(fdesc, toplevel_options, Names([filename]))
    f = ProtoFile(fdesc, file_options)
    f.optfilename = optfilename