NULL</span>,
  <span class='kw'>markerType</span> <span class='kw'>=</span> <span class='kw'>NULL</span>, <span class='kw'>markerIcons</span> <span class='kw'>=</span> <span class='kw'>NULL</span>, <span class='kw'>markerIconProperty</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>markerOptions</span> <span class='kw'>=</span> <span class='kw pkg'>leaflet</span><span class='kw ns'>::</span><span class='fu'><a href='http://www.rdocumentation.org/packages/leaflet/topics/map-o