Returns the field set that a room uses. This is the set of fields that appears on the room's Details tab in the console, such as
phone. You can use this method to gain a better understanding of the room field data that you retrieve by using the Rooms::GetRoomFieldData method, and to determine the fields for which you can provide data when you create a new room.
Anyone in the room can call this method.
(Required) The id of the room.
(Required) The id of the account.
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