class_docstr: Swap-in HDF5 File Handler.
code: def _rows_per_scan(self):
      return self.filetype_info.get("rows_per_scan", 10)
  
imports: import os
  from unittest import mock
  import dask.array
  import numpy
  import pytest
  import xarray
  from satpy.tests.reader_tests.test_hdf5_utils import FakeHDF5FileHandler
label_desc: Use image node_id 1 for calling the FakeHDF5FileHandler2 obj's underlying member method code with example usage: obj._rows_per_scan() and returns: self