Leaflet Map with PNG Download Button

# Create the Leaflet map
# Create the Leaflet map and give it an ID
mymap <- leaflet() %>% addTiles() %>% 
  addMarkers(lng=174.768, lat=-36.852, popup="Auckland")

# Render the Leaflet map with an ID
mymap %>% 
  htmlwidgets::onRender("function(el, x) {
    el.id = 'leaflet-map';
  }")