def METHOD_NAME(template_linters):
    """
    Combines the RuleSets from the provided template_linters into a single, aggregate RuleSet.
    Arguments:
        template_linters: A list of linting objects.
    Returns:
        The combined RuleSet.
    """
    return reduce(
        lambda combined, current: combined + current.ruleset,
        template_linters,
        RuleSet()
    )