code: def _is_namedtuple(obj):
      return hasattr(obj, "_fields")
  
imports: import numpy
  import pytest
  from satpy.tests.reader_tests.utils import get_jit_methods, skip_numba_unstable_if_missing
label_desc: Use image node_id 12 for calling a global function with example usage: _is_namedtuple(obj) and returns: hasattr