Resource DiscussionsMessageDraftUpdater is used to update the fields of a
DiscussionsDraft intended as a reply to an existing Topic/Announcement.
DiscussionsMessageDraftUpdater does not have a DiscussionsMessageDraftPropertiesUpdater,
because there are no fields specific to DiscussionsMessages that do not also
apply to DiscussionsDrafts.
The DiscussionsMessage for which this DiscussionsDraft is an intended reply.
When this DiscussionsDraft is posted, this DiscussionsMessage will be its
parent DiscussionsMessage.
Below are examples in XML formats. All examples are shown with all inherited members. Quoting when required is part of the examples, but you must obviously populate with your own data.