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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 is_readable(self):
 """ Return true if the efuse is readable by software """

        if self.read_disable_bit is None:
            return True  # read cannot be disabled
        value = (self.parent.read_efuse(0) >> 16) & 0xF  # RD_DIS values
        return (value & (1 << self.read_disable_bit)) == 0