
        Update a release.  This can change some metadata associated with
        the release (the ref, url, and dates).

        :pparam string organization_slug: the slug of the organization the
                                          release belongs to.
        :pparam string project_slug: the slug of the project to change the
                                     release of.
        :pparam string version: the version identifier of the release.
        :param string ref: an optional commit reference.  This is useful if
                           a tagged version has been provided.
        :param url url: a URL that points to the release.  This can be the