code: def test_read_mda(self):
      """Test reading basic metadata."""
      from satpy.readers.hdfeos_base import HDFEOSBaseFileReader
  
      res = HDFEOSBaseFileReader.read_mda(nrt_mda)
      assert res == nrt_mda_dict
  
imports: import unittest
label_desc: Use image node_id 1 for calling the TestReadMDA obj's underlying member method code with example usage: obj.test_read_mda() without return types