Get all e-mail templates
        This will iterate over all pages until it gets all elements.
        So if the rate limit exceeded it will throw an Exception and you will get nothing

        :param params: search params
        :return: list

def get_email_templates(self, params=None):
        """
        Get all e-mail templates
        This will iterate over all pages until it gets all elements.
        So if the rate limit exceeded it will throw an Exception and you will get nothing

        :param params: search params
        :return: list 
        """
        if not params:
            params = {}
        return self._iterate_through_pages(self.get_email_templates_per_page, resource=EMAIL_TEMPLATES,
                                           **{'params': params})