code: def load_track(self, track):
          
  
          # Check for minimal igv.js requirements (the only required field for all tracks is url, which must be a string)
          if isinstance(track, dict) == False:
              raise Exception("track parameter must be a dictionary")
  
          return self._send({
              "id": self.igv_id,
              "command": "loadTrack",
              "track": track
          })
docs: Load a track.  Corresponds to the igv.js Browser function loadTrack (see https://github.com/igvteam/igv.js/wiki/Browser-Control-2.0#loadtrack).
  
          :param  track: A dictionary specifying track options.  See https://github.com/igvteam/igv.js/wiki/Tracks-2.0.
          :type dict