Returns a new template loader for the given path.

        May be overridden by subclasses.  By default returns a
        directory-based loader on the given path, using the
        ``autoescape`` and ``template_whitespace`` application
        settings.  If a ``template_loader`` application setting is
        supplied, uses that instead.

def create_template_loader(self, template_path: str) -> template.BaseLoader:
        """Returns a new template loader for the given path.

        May be overridden by subclasses.  By default returns a
        directory-based loader on the given path, using the
        ``autoescape`` and ``template_whitespace`` application
        settings.  If a ``template_loader`` application setting is
        supplied, uses that instead.
        """
        settings = self.application.settings
        if "template_loader" in settings:
            return settings["template_loader"]
        kwargs = {}
        if "autoescape" in settings:
            # autoescape=None means "no escaping", so we have to be sure
            # to only pass this kwarg if the user asked for it.
            kwargs["autoescape"] = settings["autoescape"]
        if "template_whitespace" in settings:
            kwargs["whitespace"] = settings["template_whitespace"]
        return template.Loader(template_path, **kwargs)