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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 get_threats_update(self, client_state):
 """Fetch hash prefixes update for given threat list. client_state is a dict which looks like {(threatType, platformType, threatEntryType):
 clientState} """

        request_body = {
            "client": {
                "clientId": self.client_id,
                "clientVersion": self.client_version,
            },
            "listUpdateRequests": [],
        }
        for (threat_type, platform_type, threat_entry_type), current_state in client_state.items():
            request_body['listUpdateRequests'].append(
                {
                    "threatType": threat_type,
                    "platformType": platform_type,
                    "threatEntryType": threat_entry_type,
                    "state": current_state,
                    "constraints": {
                        "supportedCompressions": ["RAW"]
                    }
                }
            )
        response = self.service.threatListUpdates().fetch(body=request_body).execute()
        self.set_wait_duration(response.get('minimumWaitDuration'))
        return response['listUpdateResponses']