code: def __init__(self, environment: "t.Optional[Environment]") -> None:
      self.environment = environment
  
file_path: catboost/contrib/python/Jinja2/py3/jinja2/optimizer.py
imports: import typing
  from .None import nodes
  from .visitor import NodeTransformer
label_desc: Use image node_id 1 to create a new Optimizer object from inherited base classes: NodeTransformer with example: obj = Optimizer(environment)