How to use the azure-cognitiveservices-search-imagesearch.azure.cognitiveservices.search.imagesearch.models.offer.Offer function in azure-cognitiveservices-search-imagesearch

# coding=utf-8
# --------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
#
# Code generated by Microsoft (R) AutoRest Code Generator.
# Changes may cause incorrect behavior and will be lost if the code is
# regenerated.
# --------------------------------------------------------------------------

from .offer import Offer


class AggregateOffer(Offer):
    """Defines a list of offers from merchants that are related to the image.

    Variables are only populated by the server, and will be ignored when
    sending a request.

    All required parameters must be populated in order to send to Azure.

    :param _type: Required. Constant filled by server.
    :type _type: str
    :ivar id: A String identifier.
    :vartype id: str
    :ivar read_link: The URL that returns this resource.
    :vartype read_link: str
    :ivar web_search_url: The URL To Bing's search result for this item.
    :vartype web_search_url: str
    :ivar name: The name of the thing represented by this object.

def __init__(self, **kwargs):
        super(Offer, self).__init__(**kwargs)
        self.seller = None
        self.price = None
        self.price_currency = None
        self.availability = None
        self.aggregate_rating = None
        self.last_updated = None
        self._type = 'Offer'