The colonists refer to themselves as “the Representatives of the United States of America, in General Congress assembled,” in the very first line of the formal declaration text. This opening identifies the framers as chosen representatives acting on behalf of the newly asserting political body, not as individuals or as a single colony. {citation context not shown here due to tool access being unavailable in this turn}. If you’d like, I can pull up the exact original wording and provide a precise quote along with its historical context.