ProtectedconstructorOptionalisInternalConstructor: booleanContains the user profile of the message author.
If defined, points to the message that was replied to. If null, the message is not a reply.
Contains information about the reactions on a message.
Indicates the reaction done by the local user, if any.
Base class for all objects that are exported to scripting. This is required for all classes exported as reference-types to TypeScript. It is also used when resurrecting TypeScript objects.