message: Fixed typo
  updateMarkersVisiblilityUsingFilter --> updateMarkersVisibilityUsingFilter
diff: @@ -38,7 +38,7 @@ interface MapInfo {
  const getInfo = (marker: google.maps.Marker): MarkerInfo => marker.get('info');
  -const updateMarkersVisiblilityUsingFilter = (
  +const updateMarkersVisibilityUsingFilter = (
  markers: Map<MarkerInfo, google.maps.Marker>,
  filter: Filter,
  ) => {
  