How to use the azure-mgmt-cognitiveservices.azure.mgmt.cognitiveservices.models.CognitiveServicesAccountUpdateParameters function in azure-mgmt-cognitiveservices

resource. Each tag must have a key no greater than 128 characters and
         value no greater than 256 characters.
        :type tags: dict
        :param dict custom_headers: headers that will be added to the request
        :param bool raw: returns the direct response alongside the
         deserialized response
        :param operation_config: :ref:`Operation configuration
         overrides`.
        :rtype: :class:`CognitiveServicesAccount
         `
        :rtype: :class:`ClientRawResponse`
         if raw=true
        :raises:
         :class:`ErrorException`
        """
        parameters = models.CognitiveServicesAccountUpdateParameters(sku=sku, tags=tags)

        # Construct URL
        url = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}'
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'accountName': self._serialize.url("account_name", account_name, 'str', max_length=64, min_length=2, pattern='^[a-zA-Z0-9][a-zA-Z0-9_.-]*$'),
            'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}
        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')

        # Construct headers
        header_parameters = {}