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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 set_samplerate(self, rate):
 """Set sample rate to rate. rate: int or float rate is given as samples / timeunit. If sample rate is set, it will have an impact on the duration rule conditions. If duration is set to 2.5 and samplerate is 100, a duration of 250 records is required for the logical conditions to be true. .. note:: Updates the mask if not no_auto."""


        # Test and set value:
        float(rate)
        self.conconf.set_condition('samplerate', rate)
        if not self.no_auto:
            self.make_mask()