code: def make_valid(ob):
      """
      Make the input geometry valid according to the GEOS MakeValid algorithm.
  
      If the input geometry is already valid, then it will be returned.
  
      If the geometry must be split into multiple parts of the same type to be made valid,
      then a multi-part geometry will be returned.
  
      If the geometry must be split into multiple parts of different types to be made valid,
      then a GeometryCollection will be returned.
  
      Parameters
      ----------
      ob : Geometry
          A shapely geometry object which should be made valid. If the object is already valid,
          it will be returned as-is.
  
      Returns
      -------
      Geometry
          The input geometry, made valid according to the GEOS MakeValid algorithm.
  
      """
      if ob.is_valid:
          return ob
      return shapely.make_valid(ob)
  
label_desc: Use image node_id 2 for calling a global function with example usage: make_valid(ob) and returns: shapely, ob