code: def _more_tags(self):
      return {"allow_nan": True}
  
file_path: scikit-learn/sklearn/utils/tests/test_tags.py
imports: import pytest
  from sklearn.base import BaseEstimator
  from sklearn.utils._tags import _DEFAULT_TAGS, _safe_tags
label_desc: Use image node_id 1 for calling the MoreTagsEstimator obj's underlying member method code with example usage: obj._more_tags() and returns: dict