docs: def get_metadata_new(self, series_number):
          """
          Return series metadata.
          Output condatin information about voxelsize_mm, series_number and modality.
          If it is possible, the ImageComment, AcquisitionDate and few other dicom tags are also in output dict.
          :param series_number:
          :return: metadata dict with voxelsize_mm, SeriesNumber and other dicom tags
          """
          # TODO implement simplier metadata function
          # automatic test is prepared
  
          files, files_with_info = self.get_sorted_series_files(series_number=series_number, return_files_with_info=True)
          metadata = {
              # 'voxelsize_mm': voxelsize_mm,
              # 'Modality': data1.Modality,
              # 'SeriesNumber': series_number,
              # 'SeriesDescription' = data1.SeriesDescription,
              # 'ImageComments' : data1.ImageComments,
              # "AcquisitionDate": metadata,
              # "StudyDate": metadata,
              # "StudyDescription": metadata,
              # "RequestedProcedureDescription", metadata
          }
          return metadata