Set custom account data with specified type for the given room NOTE: Room aliases don't have the same data as their resolved room ids NOTE 2: Synapse doesn't seem to validate the room id, so you can put anything in place of it
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Set custom account data with specified type for the given room NOTE: Room aliases don't have the same data as their resolved room ids NOTE 2: Synapse doesn't seem to validate the room id, so you can put anything in place of it