BetaPrivateconstructorThis property can't be read in early-execution mode.
ReadonlymessageThis property can't be read in early-execution mode.
ReadonlysenderThis property can't be read in early-execution mode.
OptionaltargetsOptional list of players that will receive this message. If defined, this message is directly targeted to one or more players (i.e., is not broadcast). This list can be modified to change the message recipients.
This property can't be read in early-execution mode.
An event that fires as players enter chat messages.
Source