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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:
 def email(self, subject, text_body, html_body=None, sender=None, **kwargs):
 # type: (str, str, Optional[str], Optional[str], Any) -> None """Emails a user. Args: subject (str):
 Email subject text_body (str):
 Plain text email body html_body (str):
 HTML email body sender (Optional[str]):
 Email sender. Defaults to SMTP username. **kwargs: See below mail_options (List):
 Mail options (see smtplib documentation) rcpt_options (List):
 Recipient options (see smtplib documentation) Returns: None """

        self.configuration.emailer().send([self.data['email']], subject, text_body, html_body=html_body, sender=sender,
                                          **kwargs)