class_docstr: Wrapper class for a Java companion object
class_docstr_tok: ["Wrapper","class","for","a","Java","companion","object"]
code: def __del__(self) -> None:
      if (
          SparkContext._active_spark_context
          and self._java_obj is not None
      ):
          SparkContext._active_spark_context._gateway.detach(  # type: ignore[union-attr]
              self._java_obj
          )
  
imports: from abc import ABCMeta, abstractmethod
  from typing import Any, Generic, Optional, List, Type, TypeVar, TYPE_CHECKING
  from pyspark import since
  from pyspark import SparkContext
  from pyspark.sql import DataFrame
  from pyspark.ml import Estimator, Predictor, PredictionModel, Transformer, Model
  from pyspark.ml.base import _PredictorParams
  from pyspark.ml.param import Param, Params
  from pyspark.ml.util import _jvm
  from pyspark.ml.common import inherit_doc, _java2py, _py2java
label_desc: Use image node_id 2 for calling the JavaWrapper obj's underlying member method code with example usage: obj.__del__() without return types