from typing import Any, ClassVar from yaml.error import Mark class Node: tag: str value: Any start_mark: Mark | Any end_mark: Mark | Any def __init__(self, tag: str, value, start_mark: Mark | None, end_mark: Mark | None) -> None: ... class ScalarNode(Node): id: ClassVar[str] style: str | Any def __init__( self, tag: str, value, start_mark: Mark | None = ..., end_mark: Mark | None = ..., style: str | None = ... ) -> None: ... class CollectionNode(Node): flow_style: bool | Any def __init__( self, tag: str, value, start_mark: Mark | None = ..., end_mark: Mark | None = ..., flow_style: bool | None = ... ) -> None: ... class SequenceNode(CollectionNode): id: ClassVar[str] class MappingNode(CollectionNode): id: ClassVar[str]