code: def __enter__(self):
      self.old_settings = numpy.seterr(all="ignore")
  
imports: import unittest
  import numpy
  import chainerx
  from chainerx_tests import array_utils
  from chainerx_tests import dtype_utils
label_desc: Use image node_id 1 for calling the IgnoreNumpyFloatingPointError obj's underlying member method code with example usage: obj.__enter__() without return types