How to use the azure-cognitiveservices-search-imagesearch.azure.cognitiveservices.search.imagesearch.models.rating.Rating function in azure-cognitiveservices-search-imagesearch

def __init__(self, **kwargs):
        super(Rating, self).__init__(**kwargs)
        self.rating_value = kwargs.get('rating_value', None)
        self.best_rating = None
        self._type = 'Rating'

# 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 .rating import Rating


class AggregateRating(Rating):
    """Defines the metrics that indicate how well an item was rated by others.

    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.

    :ivar text: Text representation of an item.
    :vartype text: str
    :param _type: Required. Constant filled by server.
    :type _type: str
    :param rating_value: Required. The mean (average) rating. The possible
     values are 1.0 through 5.0.
    :type rating_value: float
    :ivar best_rating: The highest rated review. The possible values are 1.0
     through 5.0.