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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 get_precision(self):
 """ Get the current precision from the sensor. :returns: sensor resolution from 9-12 bits :rtype: int """

        config_str = self.raw_sensor_strings[1].split()[4]  # Byte 5 is the config register
        bit_base = int(config_str, 16) >> 5  # Bit 5-6 contains the resolution, cut off the rest
        return bit_base + 9