<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def set_web_index_page(self, container, page):
 """ Sets the header indicating the index page in a container when creating a static website. Note: the container must be CDN-enabled for this to have any effect. """

        headers = {"X-Container-Meta-Web-Index": "%s" % page}
        self.api.cdn_request("/%s" % utils.get_name(container), method="POST",
                headers=headers)