class_docstr: A param with self-contained documentation.
  
  .. versionadded:: 1.3.0
code: def __str__(self) -> str:
      return str(self.parent) + "__" + self.name
  
imports: import array
  from abc import ABCMeta
  import copy
  from typing import Any, Callable, Generic, List, Optional, overload, TypeVar, Union, TYPE_CHECKING
  import numpy
  from py4j.java_gateway import JavaObject
  from pyspark.ml.linalg import DenseVector, Vector, Matrix
  from pyspark.ml.util import Identifiable
label_desc: Use image node_id 3 for calling the Param obj's underlying member method code with example usage: obj.__str__() and returns: unknown