I see a CreateFolderRequest at SourceForge.net Repository - [zimbra] View of /trunk/ZimbraServer/docs/soap.txt

Can this SOAP request be used to add create an RSS folder to an existing account? What would I need to specify as part of the request?

something like this?
<CreateFolderRequest>
<folder name="rssFolder" url="rssFeedURL">
</CreateFolderRequest>

Where do I specify the account to add this folder to?

Thanks.