For example:
<img width="1904" alt="Screen Shot 2021-11-05 at 11 59 05 AM" src="https://user-images.githubusercontent.com/29597/140540816-25d6d47b-7aea-4121-aeaa-565accc65b1f.png">

laneBitmaskString: string,
): ReactLane[] {
  const laneBitmask = parseInt(laneBitmaskString, 10);
  
  
  if (laneBitmask < 0) {
    return [];
  }
  const lanes = [];
  let powersOfTwo = 0;
  while (powersOfTwo <= REACT_TOTAL_NUM_LANES) {
    if ((1 << powersOfTwo) & laneBitmask) {
      lanes.push(powersOfTwo);
    }
    powersOfTwo++;
  }
  return lanes;
}
function updateLaneToLabelMap(