Optional
countThe count of the reaction for type MessageReactionType.Multiple. Defaults to 1 if not set. Not supported for other reaction types.
The reaction name to add; ie. the emoji.
Optional
typeThe type of reaction, must be one of MessageReactionType. If not set, the default type will be used which is configured in the MessageOptions.defaultMessageReactionType of the room.
Parameters for adding a message reaction.