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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 host_first(self):
 """First available host in this subnet."""

        if (self.version() == 4 and self.mask > 30) or \
                (self.version() == 6 and self.mask > 126):
            return self
        else:
            return IP(self.network_long() + 1, version=self.version())