def _parse_kwargs_string(s):
    """
    Parses string and returns a dictionary. All values are strings.
    :param s: string specifying key/value pairs in format: X=Y,A=10,B=hello
    :return: dictionary of parsed content
    """
    if not s: return {}
    d = dict([item.split("=") for item in s.split(";")])
    return d