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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 measurement_time_typical(self):
 """Typical time in milliseconds required to complete a measurement in normal mode"""

        meas_time_ms = 1.0
        if self.overscan_temperature != OVERSCAN_DISABLE:
            meas_time_ms += (2 * _BME280_OVERSCANS.get(self.overscan_temperature))
        if self.overscan_pressure != OVERSCAN_DISABLE:
            meas_time_ms += (2 * _BME280_OVERSCANS.get(self.overscan_pressure) + 0.5)
        if self.overscan_humidity != OVERSCAN_DISABLE:
            meas_time_ms += (2 * _BME280_OVERSCANS.get(self.overscan_humidity) + 0.5)
        return meas_time_ms