code: def get_chunk(self, ji):
          
          return EOCubeSceneCollectionChunk(ji=ji,
                                            df_layers=self.df_layers,
                                            chunksize=self.chunksize,
                                            variables=self.variables,
                                            qa=self.qa,
                                            qa_valid=self.qa_valid,
                                            wdir=self.wdir)
docs: Get a EOCubeChunk