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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 async def mail(self, sender, options=None):
 """ Sends a SMTP 'MAIL' command. - Starts the mail transfer session. For further details, please check out `RFC 5321 § 4.1.1.2`_ and `§ 3.3`_. Args: sender (str):
 Sender mailbox (used as reverse-path). options (list of str or None, optional):
 Additional options to send along with the *MAIL* command. Raises: ConnectionResetError: If the connection with the server is unexpectedely lost. SMTPCommandFailedError: If the MAIL command fails. Returns: (int, str):
 A (code, message) 2-tuple containing the server response. .. _`RFC 5321 § 4.1.1.2`: https://tools.ietf.org/html/rfc5321#section-4.1.1.2 .. _`§ 3.3`: https://tools.ietf.org/html/rfc5321#section-3.3 """

        if options is None:
            options = []

        from_addr = "FROM:{}".format(quoteaddr(sender))
        code, message = await self.do_cmd("MAIL", from_addr, *options)

        return code, message