code: def __post_init__(self) -> None:
      Warning._code_map[self.code] = self
      Warning._name_map[self.name] = self
  
file_path: bokeh/src/bokeh/core/validation/issue.py
imports: from __future__ import annotations
  import logging
  from typing import ClassVar
  from ...util.dataclasses import dataclass
label_desc: Use image node_id 1 for calling the Warning obj's underlying member method code with example usage: obj.__post_init__() without return types