@staticmethod
def generate_accordion(summary, main):
    """
        Returns an HTML native accordion.
        :param str summary: Accordion's summary.
        :param str main: Accordion's main body.
        :return str: Accordion.
        """
    return (
        """
        <details>
                <summary>{}</summary>
                <main>{}</main>
        </details>
        """
        .format(summary, main))
