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from collections.abc import Sequence
from typing import Any
from django.db.migrations.migration import Migration
from django.db.migrations.state import ProjectState
class Node:
key: tuple[str, str]
children: set[Any]
parents: set[Any]
def __init__(self, key: tuple[str, str]) -> None: ...
def __eq__(self, other: object) -> bool: ...
def __lt__(self, other: tuple[str, str] | Node) -> bool: ...
def __getitem__(self, item: int) -> str: ...
def __hash__(self) -> int: ...
def add_child(self, child: Node) -> None: ...
def add_parent(self, parent: Node) -> None: ...
class DummyNode(Node):
origin: Any
error_message: Any
def __init__(self, key: tuple[str, str], origin: Migration | str, error_message: str) -> None: ...
def raise_error(self) -> None: ...
class MigrationGraph:
node_map: dict[tuple[str, str], Node]
nodes: dict[tuple[str, str], Migration | None]
cached: bool
def __init__(self) -> None: ...
def add_node(self, key: tuple[str, str], migration: Migration | None) -> None: ...
def add_dummy_node(self, key: tuple[str, str], origin: Migration | str, error_message: str) -> None: ...
def add_dependency(
self,
migration: Migration | str | None,
child: tuple[str, str],
parent: tuple[str, str],
skip_validation: bool = False,
) -> None: ...
def remove_replaced_nodes(self, replacement: tuple[str, str], replaced: list[tuple[str, str]]) -> None: ...
def remove_replacement_node(self, replacement: tuple[str, str], replaced: list[tuple[str, str]]) -> None: ...
def validate_consistency(self) -> None: ...
def forwards_plan(self, target: tuple[str, str]) -> list[tuple[str, str]]: ...
def backwards_plan(self, target: tuple[str, str]) -> list[tuple[str, str]]: ...
def iterative_dfs(self, start: Any, forwards: bool = True) -> list[tuple[str, str]]: ...
def root_nodes(self, app: str | None = None) -> list[tuple[str, str]]: ...
def leaf_nodes(self, app: str | None = None) -> list[tuple[str, str]]: ...
def ensure_not_cyclic(self) -> None: ...
def make_state(
self,
nodes: None | tuple[str, str] | Sequence[tuple[str, str]] = None,
at_end: bool = True,
real_apps: list[str] | None = None,
) -> ProjectState: ...
def __contains__(self, node: tuple[str, str]) -> bool: ...
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