code: def reformat_input(self, **kwargs):
          
          reformatted_input = {}
          needed_formats = []
          for task_cls in self.tasks:
              needed_formats.append(task_cls.data_format)
          self.needed_formats = list(set(needed_formats))
  
          for output_format in self.needed_formats:
              reformatted_input.update(
                  {
                      output_format :
                          {
                          'data' : self.reformat_file(self.input_file, self.input_format, output_format),
                          'target' : self.reformat_file(self.target_file, self.target_format, output_format)
                          }
                  }
              )
          return reformatted_input
docs: Reformat input data