How to use the azure-mgmt-datalake-store.azure.mgmt.datalake.store.filesystem.models.__dict__ function in azure-mgmt-datalake-store

def __init__(
            self, credentials, adls_file_system_dns_suffix, api_version='2015-10-01-preview', accept_language='en-US', long_running_operation_retry_timeout=30, generate_client_request_id=True, filepath=None):

        self.config = DataLakeStoreFileSystemManagementClientConfiguration(credentials, adls_file_system_dns_suffix, api_version, accept_language, long_running_operation_retry_timeout, generate_client_request_id, filepath)
        self._client = ServiceClient(self.config.credentials, self.config)

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

        self.file_system = FileSystemOperations(
            self._client, self.config, self._serialize, self._deserialize)