docs: def _lsm_fix_strip_bytecounts(self):
          """Set databytecounts to size of compressed data.
  
          The StripByteCounts tag in LSM files contains the number of bytes
          for the uncompressed data.
  
          """
          pages = self.pages
          if pages[0].compression == 1:
              return
          # sort pages by first strip offset
          pages = sorted(pages, key=lambda p: p._offsetscounts[0][0])
          npages = len(pages) - 1
          for i, page in enumerate(pages):
              if page.index % 2:
                  continue
              offsets, bytecounts = page._offsetscounts
              if i < npages:
                  lastoffset = pages[i+1]._offsetscounts[0][0]
              else:
                  # LZW compressed strips might be longer than uncompressed
                  lastoffset = min(offsets[-1] + 2*bytecounts[-1], self._fh.size)
              for j in range(len(bytecounts) - 1):
                  bytecounts[j] = offsets[j+1] - offsets[j]
              bytecounts[-1] = lastoffset - offsets[-1]