An get file dialog.
    Optionally a `message`, `title`, `directory`, `fileName` and
    `allowsMultipleSelection` can be provided.

    ::

        from fontParts.ui import GetFile
        print(GetFile())

def GetFile(message=None, title=None, directory=None, fileName=None,
            allowsMultipleSelection=False, fileTypes=None):
    """
    An get file dialog.
    Optionally a `message`, `title`, `directory`, `fileName` and
    `allowsMultipleSelection` can be provided.

    ::

        from fontParts.ui import GetFile
        print(GetFile())

    """
    return dispatcher["GetFile"](message=message, title=title, directory=directory,
                                 fileName=fileName,
                                 allowsMultipleSelection=allowsMultipleSelection,
                                 fileTypes=fileTypes)