poseHandler_1.js

 async function poseHandler(pose) {
        l_hip = pose.keypoints[11];
        r_hip = pose.keypoints[12];

        hip = undefined;
        if (l_hip &&  !r_hip) {
            hip = l_hip;
        }else if (r_hip && !l_hip) {
            hip = r_hip;
        }else{
            if (l_hip.score > r_hip.score) {
                hip = l_hip;
            } else {
                hip = r_hip;
            }
        }

        if (!hip || hip.score < 0.6) {
            // no hip found
            return
        }
   // .. 
 }