code: def ds_x_to_json(ds, widget):
      return ds2json(
          ds,
          widget.zonal_speed,
          widget.meridional_speed,
          widget.latitude_dimension,
          widget.longitude_dimension,
          widget.units,
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: ds_x_to_json(ds, widget) and returns: ds2json