docs: def geo(map_data, **kwargs):
      """Draw a map in the current context figure.
  
      Parameters
      ----------
      map_data: string or bqplot.map (default: WorldMap)
          Name of the map or json file required for the map data.
      options: dict (default: {})
          Options for the scales to be created. If a scale labeled 'x' is
          required for that mark, options['x'] contains optional keyword
          arguments for the constructor of the corresponding scale type.
      axes_options: dict (default: {})
          Options for the axes to be created. If an axis labeled 'x' is required
          for that mark, axes_options['x'] contains optional keyword arguments
          for the constructor of the corresponding axis type.
      """
      scales = kwargs.pop('scales', _context['scales'])
      options = kwargs.get('options', {})
      if 'projection' not in scales:
          scales['projection'] = Mercator(**options.get('projection', {}))
      kwargs['scales'] = scales
      if isinstance(map_data, string_types):
          kwargs['map_data'] = topo_load('map_data/' + map_data + '.json')
      else:
          kwargs['map_data'] = map_data
      return _draw_mark(Map, **kwargs)