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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 cycle_interface(self, increment=1):
 """Cycle through available interfaces in `increment` steps. Sign indicates direction."""

        interfaces = [i for i in netifaces.interfaces() if i not in self.ignore_interfaces]
        if self.interface in interfaces:
            next_index = (interfaces.index(self.interface) + increment) % len(interfaces)
            self.interface = interfaces[next_index]
        elif len(interfaces) > 0:
            self.interface = interfaces[0]

        if self.network_traffic:
            self.network_traffic.clear_counters()
            self.kbs_arr = [0.0] * self.graph_width