How to use the azure-mgmt-datalake-analytics.azure.mgmt.datalake.analytics.job.models function in azure-mgmt-datalake-analytics

def __init__(
            self, credentials, adla_job_dns_suffix):

        self.config = DataLakeAnalyticsJobManagementClientConfiguration(credentials, adla_job_dns_suffix)
        super(DataLakeAnalyticsJobManagementClient, 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 = '2017-09-01-preview'
        self._serialize = Serializer(client_models)
        self._deserialize = Deserializer(client_models)

        self.job = JobOperations(
            self._client, self.config, self._serialize, self._deserialize)
        self.pipeline = PipelineOperations(
            self._client, self.config, self._serialize, self._deserialize)
        self.recurrence = RecurrenceOperations(
            self._client, self.config, self._serialize, self._deserialize)