def METHOD_NAME(self, old_classifier_brand: str, is_mapper: bool) -> str:
    """
    Calculates the new path for mapper or classifier of 6_0_0 format
    Args:
        old_classifier_brand (str): Brand name of the old classifier.
        is_mapper (bool): Whether path created is for mapper or for classifier.
    Returns:
        (str): The path to the newly created classifier/mapper of 6_0_0 format.
    """
    fixed_brand_name = self.entity_separators_to_underscore(old_classifier_brand)
    if is_mapper:
        fixed_brand_name = f"mapper-incoming-{fixed_brand_name}"
    new_path_suffix = f"classifier-{fixed_brand_name}.json"
    new_path = f"{str(self.pack.path)}/Classifiers/{new_path_suffix}"
    return new_path