Create Or Update Products Batch

This function handles the creation and update of multiple products with the Tiliter Recognition API.
Products that already exist (matched by product_id) are updated; new products are created.

Args:
request_data (CreateProductsBatchRequest): The request data containing the list of products to be created or updated.
request (Request): The request object containing metadata about the request.

Returns:
CreateProductsBatchResponse: A response containing the results of each product creation or update.