code: def _get_docstring_indent(docstring: str) -> str:
      return docstring.split("\n")[-1] if "\n" in docstring else ""
  
file_path: optuna/optuna/_experimental.py
imports: import functools
  import textwrap
  from typing import Any
  from typing import Callable
  from typing import Optional
  from typing import TYPE_CHECKING
  from typing import TypeVar
  import warnings
  from optuna.exceptions import ExperimentalWarning
label_desc: Use image node_id 2 for calling a global function with example usage: _get_docstring_indent(docstring) and returns: unknown