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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 autodetect(self):
 """ Try to guess the best 'device_type' based on patterns defined in SSH_MAPPER_BASE Returns ------- best_match : str or None The device type that is currently the best to use to interact with the device """

        for device_type, autodetect_dict in SSH_MAPPER_BASE.items():
            tmp_dict = autodetect_dict.copy()
            call_method = tmp_dict.pop("dispatch")
            autodetect_method = getattr(self, call_method)
            accuracy = autodetect_method(**tmp_dict)
            if accuracy:
                self.potential_matches[device_type] = accuracy
                if accuracy >= 99:  # Stop the loop as we are sure of our match
                    best_match = sorted(
                        self.potential_matches.items(), key=lambda t: t[1], reverse=True
                    )
                    self.connection.disconnect()
                    return best_match[0][0]

        if not self.potential_matches:
            self.connection.disconnect()
            return None

        best_match = sorted(
            self.potential_matches.items(), key=lambda t: t[1], reverse=True
        )
        self.connection.disconnect()
        return best_match[0][0]