docs: def read_lsm_timestamps(fh):
      """Read LSM time stamps from file and return as list."""
      size, count = struct.unpack('<ii', fh.read(8))
      if size != (8 + 8 * count):
          log.warning('read_lsm_timestamps: invalid LSM TimeStamps block')
          return []
      # return struct.unpack('<%dd' % count, fh.read(8*count))
      return fh.read_array('<f8', count=count)