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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 _write_ctrl_meas(self):
 """ Write the values to the ctrl_meas and ctrl_hum registers in the device ctrl_meas sets the pressure and temperature data acquistion options ctrl_hum sets the humidty oversampling and must be written to first """

        self._write_register_byte(_BME280_REGISTER_CTRL_HUM, self.overscan_humidity)
        self._write_register_byte(_BME280_REGISTER_CTRL_MEAS, self._ctrl_meas)