How to use the azure-mgmt-iotcentral.azure.mgmt.iotcentral.iot_central_client.IotCentralClient function in azure-mgmt-iotcentral

def __init__(
            self, credentials, subscription_id, base_url=None):

        self.config = IotCentralClientConfiguration(credentials, subscription_id, base_url)
        super(IotCentralClient, self).__init__(self.config.credentials, self.config)

        client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
        self.api_version = '2018-09-01'
        self._serialize = Serializer(client_models)
        self._deserialize = Deserializer(client_models)

        self.apps = AppsOperations(
            self._client, self.config, self._serialize, self._deserialize)
        self.operations = Operations(
            self._client, self.config, self._serialize, self._deserialize)