How to use the azure-mgmt-eventgrid.azure.mgmt.eventgrid.models.event_subscription.EventSubscription function in azure-mgmt-eventgrid

def __init__(self, **kwargs):
        super(EventSubscription, self).__init__(**kwargs)
        self.topic = None
        self.provisioning_state = None
        self.destination = kwargs.get('destination', None)
        self.filter = kwargs.get('filter', None)
        self.labels = kwargs.get('labels', None)
        self.expiration_time_utc = kwargs.get('expiration_time_utc', None)
        self.event_delivery_schema = kwargs.get('event_delivery_schema', None)
        self.retry_policy = kwargs.get('retry_policy', None)
        self.dead_letter_destination = kwargs.get('dead_letter_destination', None)