class_docstr: Accessor to ``imblearn``.
code: def _under_sampling(self):
      return _AccessorMethods(
          self._df, module_name="imblearn.under_sampling"
      )
  
file_path: pandas-ml/pandas_ml/imbaccessors/base.py
imports: from pandas_ml.compat import cache_readonly
  from pandas_ml.core.accessor import _AccessorMethods
label_desc: Use image node_id 2 for calling the ImbalanceMethods obj's underlying member method code with example usage: obj._under_sampling() and returns: _AccessorMethods