[API Proposal]: System.ServiceModel.Syndication equivalent for SiteMap and SiteMapIndex files

[kaylumah]

Background and motivation

For programatically creating RSS/Atom feeds we have the System.ServiceModel.Syndication nuget package.

For Sitemaps, and for larger sites Sitemaps index file no such API exist as far I as can tell.
It would be nice to have a similar API surface for the creation of sitemaps.

• The DTO classes (i.e. SyndicationFeed)
• The xml namespace consants (i.e. Atom10Constants)
• The formatters (i.e. Atom10FeedFormatter)

API Proposal

API Usage

Alternative Designs

No response

Risks

No response