def notify(self, message):
        """Sends the message.

        Args:
            message (str): The message to send.

        Returns:
            dict: A dictionary containing the result of the attempt to send the email.
        """

        header = 'From: %s\n' % self.username
        header += 'To: %s\n' % self.destination_addresses
        header += 'Content-Type: text/plain\n'
        header += 'Subject: Crypto-signal alert!\n\n'
        message = header + message

        smtp_handler = smtplib.SMTP(self.smtp_server)
        smtp_handler.starttls()
        smtp_handler.login(self.username, self.password)
        result = smtp_handler.sendmail(self.username, self.destination_addresses, message)
        smtp_handler.quit()
        return result
Sends the message.

        Args:
            message (str): The message to send.

        Returns:
            dict: A dictionary containing the result of the attempt to send the email.
        
app/notifiers/gmail_client.py