Room participation: getRoomStateWithKey

[chrisabruce]

Get the state identified by the type and key.

.. For backwards compatibility with older links... .. _get-matrix-client-unstable-rooms-roomid-state-eventtype:

Looks up the contents of a state event in a room. If the user is joined to the room then the state is taken from the current state of the room. If the user has left the room then the state is taken from the state of the room when they left.