def get_content_type(ct_name):
    """
    A helper function that returns ContentType object based on its slugified verbose_name_plural.

    Results of this function is cached to improve performance.

    :Parameters:
        - `ct_name`:  Slugified verbose_name_plural of the target model.

    :Exceptions:
        - `Http404`: if no matching ContentType is found
    """
    try:
        ct = CONTENT_TYPE_MAPPING[ct_name]
    except KeyError:
        for model in models.get_models():
            if ct_name == slugify(model._meta.verbose_name_plural):
                ct = ContentType.objects.get_for_model(model)
                CONTENT_TYPE_MAPPING[ct_name] = ct
                break
        else:
            raise Http404
    return ct
A helper function that returns ContentType object based on its slugified verbose_name_plural.

    Results of this function is cached to improve performance.

    :Parameters:
        - `ct_name`:  Slugified verbose_name_plural of the target model.

    :Exceptions:
        - `Http404`: if no matching ContentType is found