type.  If this is an executable, it
    might launch the executable in a new session.  The return value is
    the exit code of the launched application.  Usually, ``0`` indicates
    success.

    Examples::

        click.launch('https://click.palletsprojects.com/')
        click.launch('/my/downloaded/file', locate=True)

    .. versionadded:: 2.0

    :param url: URL or filename of the thing to launch.
    :param wait: waits for the program to stop.
    :param locate: if this is set to `True` then instead of launching the
                   application associated with the URL it will attempt to
                   launch a file manager with the file located.  This
                   might have weird effects if the URL does not point to
                   the filesystem.
    r