code: def make_mapping(args):
      
      mapping = {}
  
      if args:
          for arg in args:
              name_value = arg.split('=', 1)
              mapping[name_value[0]] = (name_value[1]
                                        if len(name_value) > 1
                                        else None)
  
      return mapping
docs: Make a mapping from the name=value pairs.