ExtensionValidator.
        [Preview API]
        :param :class:`<AzureRestApiRequestModel> <azure.devops.v5_0.gallery.models.AzureRestApiRequestModel>` azure_rest_api_request_model:

def extension_validator(self, azure_rest_api_request_model):
        """ExtensionValidator.
        [Preview API]
        :param :class:`<AzureRestApiRequestModel> <azure.devops.v5_0.gallery.models.AzureRestApiRequestModel>` azure_rest_api_request_model:
        """
        content = self._serialize.body(azure_rest_api_request_model, 'AzureRestApiRequestModel')
        self._send(http_method='POST',
                   location_id='05e8a5e1-8c59-4c2c-8856-0ff087d1a844',
                   version='5.0-preview.1',
                   content=content)