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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 _increment(self, *args):
 """Move the slider only by increment given by resolution."""

        value = self._var.get()
        if self._resolution:
            value = self._start + int(round((value - self._start) / self._resolution)) * self._resolution
            self._var.set(value)
        self.display_value(value)