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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_user( self, subject, message, from_email=settings.DEFAULT_FROM_EMAIL, **kwargs ):
 """ Sends an email to this User. If settings.EMAIL_OVERRIDE_ADDRESS is set, this mail will be redirected to the alternate mail address. """

        receiver = self.email
        if settings.EMAIL_OVERRIDE_ADDRESS:
            receiver = settings.EMAIL_OVERRIDE_ADDRESS

        send_mail(subject, message, from_email, [receiver], **kwargs)