def get_default_opts(overrides=None):
    """
    Default :term:`opts` used by :func:`lasso()` when constructing its internal :class:`Ranger`.

    :param dict or None overrides:
            Any items to update the default ones.
    """
    opts = {'lax': False, 'verbose': False, 'read': {'on_demand': True}}
    if overrides:
        opts.update(overrides)
    return opts
