def _register_ip(self, ip_str):
        ip = get_integer_from_ip_str(ip_str)
        if ip not in self.unique_ips:
            self.unique_ips.add(ip)
See if 'ip_str' has connected to obfsproxy before. If not, add
dataset/ETHPy150Open isislovecruft/obfsproxy/obfsproxy/common/heartbeat.py/Heartbeat._register_ip