def _build_bool_type(var, property_path=None):
    """ Builds schema definitions for boolean type values.

    :param var: The boolean type value
    :param List[str] property_path: The property path of the current type,
        defaults to None, optional
    :param property_path: [type], optional
    :return: The built schema definition
    :rtype: Dict[str, Any]
    """

    if not property_path:
        property_path = []

    return {"type": "boolean"}