class_docstr: Test identification of Native format filenames.
class_docstr_tok: ["Test","identification","of","Native","format","filenames","."]
docstr: Return reader for SEVIRI Native format.
docstr_tok: ["Return","reader","for","SEVIRI","Native","format","."]
code: def reader(self):
      """Return reader for SEVIRI Native format."""
      from satpy._config import config_search_paths
      from satpy.readers import load_reader
  
      reader_configs = config_search_paths(
          os.path.join("readers", "seviri_l1b_native.yaml")
      )
      reader = load_reader(reader_configs)
      return reader
  
imports: from __future__ import annotations
  import os
  import unittest
  import warnings
  from datetime import datetime
  from unittest import mock
  import dask.array
  import numpy
  import pytest
  import xarray
  from satpy.readers.eum_base import recarray2dict, time_cds_short
  from satpy.readers.seviri_l1b_native import ASCII_STARTSWITH, ImageBoundaries, NativeMSGFileHandler, Padder, get_available_channels, has_archive_header
  from satpy.tests.reader_tests.test_seviri_base import ORBIT_POLYNOMIALS, ORBIT_POLYNOMIALS_INVALID
  from satpy.tests.reader_tests.test_seviri_l1b_calibration import TestFileHandlerCalibrationBase
  from satpy.tests.utils import assert_attrs_equal, make_dataid
label_desc: Use image node_id 1 for calling the TestNativeMSGFilenames obj's underlying member method code with example usage: obj.reader() and returns: reader