es are declared first, prior to
recording any weight messages. No definition messages should appear after weight data
messages have been recorded. To link multiple data messages in a weight file, they must
have identical timestamps.</p>

                        </div>
                        <div class="declaration">
                          <h4>Declaration</h4>
                          <div class="language">
                            <p class="aside-title">Swift</p>
                            <pre cla