Module:VisitedMap

local p = {}  function p.render(frame)     local qids_str = frame.args[1] or ""     local map_params = {         latitude = "15",         longitude = "13.5",         zoom = "2",         width = "100%",          height = "500",         align = "center"     }      if qids_str == "" or qids_str == nil then         return frame:extensionTag('mapframe', '', map_params)     end     local qids = {}     for qid in string.gmatch(qids_str, '([^,]+)') do         table.insert(qids, mw.text.trim(qid))     end      local shapes = {}     local chunk_size = 20          for i = 1, #qids, chunk_size do         local chunk = {}         for j = i, math.min(i + chunk_size - 1, #qids) do             table.insert(chunk, qids[j])         end                  table.insert(shapes, {             type = "ExternalData",             service = "geoshape",             ids = table.concat(chunk, ","),             properties = {                 fill = "#3366cc",                 ["fill-opacity"] = 0.5,                 stroke = "#ffffff",                 ["stroke-width"] = 1,             }         })     end      return frame:extensionTag('mapframe', mw.text.jsonEncode(shapes), map_params) end  return p