global class ChannelHistoryChangedEvent { global ChannelHistoryChangedEvent() { } global Object clone() { } global String getEventTs() { } global String getLatest() { } global String getSubtype() { } global String getTs() { } global String getType() { } global void setEventTs(String eventTs) { } global void setLatest(String latest) { } global void setTs(String ts) { } global String toString() { } }