Optionalis_Pass True to set the reaction with a big animation
Identifier of the target message. If the message belongs to a media group, the reaction is set to the first non-deleted message in the group instead.
OptionalreactionA JSON-serialized list of reaction types to set on the message. Currently, as non-premium users, bots can set up to one reaction per message. A custom emoji reaction can be used if it is either already present on the message or explicitly allowed by chat administrators. Paid reactions can't be used by bots.
Unique identifier for the target chat or username of the target bot, supergroup or channel in the format
@username