docs for new DynamicHTTPMetadataProvider?

[Tom Scavo]

InCommon is preparing to announce a beta Metadata Query Server that
serves both per-IdP metadata and per-SP metadata. See the top of this
wiki page for more info: https://spaces.internet2.edu/x/3w7kAg

That this announcement comes on the heels of the IdP V3 announcement
is no accident. We've been anxiously waiting for the announcement of
IdP V3 :-)

AFAICT there still is no documentation for the new
DynamicHTTPMetadataProvider. Can someone cobble together a wiki page
or at least give some hints how to do this?

Thanks in advance,

Tom