How to fire events.conference.PARTICIPANT_PROPERTY_CHANGED

i try to fire event conference.PARTICIPANT_PROPERTY_CHANGED

//mycode
room.on(JitsiMeetJS.events.conference.PARTICIPANT_PROPERTY_CHANGED, this.handleParticipantPropertyChanged);
//
by using setLocalParticipantProperty() but i can’t fire that event,
help me pleas

thanks

Please, give more details