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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 _login_authentication(self, login, password, authz_id=""):
 """SASL LOGIN authentication :param login: username :param password: clear password :return: True on success, False otherwise. """

        extralines = [b'"%s"' % base64.b64encode(login.encode("utf-8")),
                      b'"%s"' % base64.b64encode(password.encode("utf-8"))]
        code, data = self.__send_command("AUTHENTICATE", [b"LOGIN"],
                                         extralines=extralines)
        if code == "OK":
            return True
        return False