s paths           Paths by which to traverse.
@param default          Value to return if the paths do not match.
                        If the last key in the path is a `dict`, it will apply to each value inside
                        the dict instead, depth first. Try to avoid if using nested `dict` keys.
@param expected_type    If a `type`, only accept final values of this type.
                        If any other callable, try to call the function on each result.
                        If the last key in the path is a `dict`, it will apply to each value inside
                        the dict instead, recursively. This does respect branching paths.
@param get_all          If `False`, return the first matching result, otherwise all matching ones.
@param casesense        If `False`, consider string dictionary keys as case insensitive.

`traverse_string` is only meant to be used by YoutubeDL.prepare_outtmpl and is not part of the API

@param traverse_string  Whether to traverse into objects as strings.
                        If `True`, any non-compatible object will first be
                        converted into a string and then traversed into.
                        The return value of that path will be a string instead,
                        not respecting any further branching.


@returns                The result of the object traversal.
                        If successful, `get_all=True`, and the path branches at least once,
                        then a list of results is returned instead.
                        If no `default` is given and the last path branches, a `list` of results
                        is always returned. If a path ends on a `dict` that result will always be a `dict`.
z=The is_user_input parameter is deprecated and no longer worksc