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diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/event/base.py b/venv/lib/python3.11/site-packages/sqlalchemy/event/base.py
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+# event/base.py
+# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+
+"""Base implementation classes.
+
+The public-facing ``Events`` serves as the base class for an event interface;
+its public attributes represent different kinds of events.   These attributes
+are mirrored onto a ``_Dispatch`` class, which serves as a container for
+collections of listener functions.   These collections are represented both
+at the class level of a particular ``_Dispatch`` class as well as within
+instances of ``_Dispatch``.
+
+"""
+from __future__ import annotations
+
+import typing
+from typing import Any
+from typing import cast
+from typing import Dict
+from typing import Generic
+from typing import Iterator
+from typing import List
+from typing import Mapping
+from typing import MutableMapping
+from typing import Optional
+from typing import overload
+from typing import Tuple
+from typing import Type
+from typing import Union
+import weakref
+
+from .attr import _ClsLevelDispatch
+from .attr import _EmptyListener
+from .attr import _InstanceLevelDispatch
+from .attr import _JoinedListener
+from .registry import _ET
+from .registry import _EventKey
+from .. import util
+from ..util.typing import Literal
+
+_registrars: MutableMapping[str, List[Type[_HasEventsDispatch[Any]]]] = (
+    util.defaultdict(list)
+)
+
+
+def _is_event_name(name: str) -> bool:
+    # _sa_event prefix is special to support internal-only event names.
+    # most event names are just plain method names that aren't
+    # underscored.
+
+    return (
+        not name.startswith("_") and name != "dispatch"
+    ) or name.startswith("_sa_event")
+
+
+class _UnpickleDispatch:
+    """Serializable callable that re-generates an instance of
+    :class:`_Dispatch` given a particular :class:`.Events` subclass.
+
+    """
+
+    def __call__(self, _instance_cls: Type[_ET]) -> _Dispatch[_ET]:
+        for cls in _instance_cls.__mro__:
+            if "dispatch" in cls.__dict__:
+                return cast(
+                    "_Dispatch[_ET]", cls.__dict__["dispatch"].dispatch
+                )._for_class(_instance_cls)
+        else:
+            raise AttributeError("No class with a 'dispatch' member present.")
+
+
+class _DispatchCommon(Generic[_ET]):
+    __slots__ = ()
+
+    _instance_cls: Optional[Type[_ET]]
+
+    def _join(self, other: _DispatchCommon[_ET]) -> _JoinedDispatcher[_ET]:
+        raise NotImplementedError()
+
+    def __getattr__(self, name: str) -> _InstanceLevelDispatch[_ET]:
+        raise NotImplementedError()
+
+    @property
+    def _events(self) -> Type[_HasEventsDispatch[_ET]]:
+        raise NotImplementedError()
+
+
+class _Dispatch(_DispatchCommon[_ET]):
+    """Mirror the event listening definitions of an Events class with
+    listener collections.
+
+    Classes which define a "dispatch" member will return a
+    non-instantiated :class:`._Dispatch` subclass when the member
+    is accessed at the class level.  When the "dispatch" member is
+    accessed at the instance level of its owner, an instance
+    of the :class:`._Dispatch` class is returned.
+
+    A :class:`._Dispatch` class is generated for each :class:`.Events`
+    class defined, by the :meth:`._HasEventsDispatch._create_dispatcher_class`
+    method.  The original :class:`.Events` classes remain untouched.
+    This decouples the construction of :class:`.Events` subclasses from
+    the implementation used by the event internals, and allows
+    inspecting tools like Sphinx to work in an unsurprising
+    way against the public API.
+
+    """
+
+    # "active_history" is an ORM case we add here.   ideally a better
+    # system would be in place for ad-hoc attributes.
+    __slots__ = "_parent", "_instance_cls", "__dict__", "_empty_listeners"
+
+    _active_history: bool
+
+    _empty_listener_reg: MutableMapping[
+        Type[_ET], Dict[str, _EmptyListener[_ET]]
+    ] = weakref.WeakKeyDictionary()
+
+    _empty_listeners: Dict[str, _EmptyListener[_ET]]
+
+    _event_names: List[str]
+
+    _instance_cls: Optional[Type[_ET]]
+
+    _joined_dispatch_cls: Type[_JoinedDispatcher[_ET]]
+
+    _events: Type[_HasEventsDispatch[_ET]]
+    """reference back to the Events class.
+
+    Bidirectional against _HasEventsDispatch.dispatch
+
+    """
+
+    def __init__(
+        self,
+        parent: Optional[_Dispatch[_ET]],
+        instance_cls: Optional[Type[_ET]] = None,
+    ):
+        self._parent = parent
+        self._instance_cls = instance_cls
+
+        if instance_cls:
+            assert parent is not None
+            try:
+                self._empty_listeners = self._empty_listener_reg[instance_cls]
+            except KeyError:
+                self._empty_listeners = self._empty_listener_reg[
+                    instance_cls
+                ] = {
+                    ls.name: _EmptyListener(ls, instance_cls)
+                    for ls in parent._event_descriptors
+                }
+        else:
+            self._empty_listeners = {}
+
+    def __getattr__(self, name: str) -> _InstanceLevelDispatch[_ET]:
+        # Assign EmptyListeners as attributes on demand
+        # to reduce startup time for new dispatch objects.
+        try:
+            ls = self._empty_listeners[name]
+        except KeyError:
+            raise AttributeError(name)
+        else:
+            setattr(self, ls.name, ls)
+            return ls
+
+    @property
+    def _event_descriptors(self) -> Iterator[_ClsLevelDispatch[_ET]]:
+        for k in self._event_names:
+            # Yield _ClsLevelDispatch related
+            # to relevant event name.
+            yield getattr(self, k)
+
+    def _listen(self, event_key: _EventKey[_ET], **kw: Any) -> None:
+        return self._events._listen(event_key, **kw)
+
+    def _for_class(self, instance_cls: Type[_ET]) -> _Dispatch[_ET]:
+        return self.__class__(self, instance_cls)
+
+    def _for_instance(self, instance: _ET) -> _Dispatch[_ET]:
+        instance_cls = instance.__class__
+        return self._for_class(instance_cls)
+
+    def _join(self, other: _DispatchCommon[_ET]) -> _JoinedDispatcher[_ET]:
+        """Create a 'join' of this :class:`._Dispatch` and another.
+
+        This new dispatcher will dispatch events to both
+        :class:`._Dispatch` objects.
+
+        """
+        if "_joined_dispatch_cls" not in self.__class__.__dict__:
+            cls = type(
+                "Joined%s" % self.__class__.__name__,
+                (_JoinedDispatcher,),
+                {"__slots__": self._event_names},
+            )
+            self.__class__._joined_dispatch_cls = cls
+        return self._joined_dispatch_cls(self, other)
+
+    def __reduce__(self) -> Union[str, Tuple[Any, ...]]:
+        return _UnpickleDispatch(), (self._instance_cls,)
+
+    def _update(
+        self, other: _Dispatch[_ET], only_propagate: bool = True
+    ) -> None:
+        """Populate from the listeners in another :class:`_Dispatch`
+        object."""
+        for ls in other._event_descriptors:
+            if isinstance(ls, _EmptyListener):
+                continue
+            getattr(self, ls.name).for_modify(self)._update(
+                ls, only_propagate=only_propagate
+            )
+
+    def _clear(self) -> None:
+        for ls in self._event_descriptors:
+            ls.for_modify(self).clear()
+
+
+def _remove_dispatcher(cls: Type[_HasEventsDispatch[_ET]]) -> None:
+    for k in cls.dispatch._event_names:
+        _registrars[k].remove(cls)
+        if not _registrars[k]:
+            del _registrars[k]
+
+
+class _HasEventsDispatch(Generic[_ET]):
+    _dispatch_target: Optional[Type[_ET]]
+    """class which will receive the .dispatch collection"""
+
+    dispatch: _Dispatch[_ET]
+    """reference back to the _Dispatch class.
+
+    Bidirectional against _Dispatch._events
+
+    """
+
+    if typing.TYPE_CHECKING:
+
+        def __getattr__(self, name: str) -> _InstanceLevelDispatch[_ET]: ...
+
+    def __init_subclass__(cls) -> None:
+        """Intercept new Event subclasses and create associated _Dispatch
+        classes."""
+
+        cls._create_dispatcher_class(cls.__name__, cls.__bases__, cls.__dict__)
+
+    @classmethod
+    def _accept_with(
+        cls, target: Union[_ET, Type[_ET]], identifier: str
+    ) -> Optional[Union[_ET, Type[_ET]]]:
+        raise NotImplementedError()
+
+    @classmethod
+    def _listen(
+        cls,
+        event_key: _EventKey[_ET],
+        *,
+        propagate: bool = False,
+        insert: bool = False,
+        named: bool = False,
+        asyncio: bool = False,
+    ) -> None:
+        raise NotImplementedError()
+
+    @staticmethod
+    def _set_dispatch(
+        klass: Type[_HasEventsDispatch[_ET]],
+        dispatch_cls: Type[_Dispatch[_ET]],
+    ) -> _Dispatch[_ET]:
+        # This allows an Events subclass to define additional utility
+        # methods made available to the target via
+        # "self.dispatch._events.<utilitymethod>"
+        # @staticmethod to allow easy "super" calls while in a metaclass
+        # constructor.
+        klass.dispatch = dispatch_cls(None)
+        dispatch_cls._events = klass
+        return klass.dispatch
+
+    @classmethod
+    def _create_dispatcher_class(
+        cls, classname: str, bases: Tuple[type, ...], dict_: Mapping[str, Any]
+    ) -> None:
+        """Create a :class:`._Dispatch` class corresponding to an
+        :class:`.Events` class."""
+
+        # there's all kinds of ways to do this,
+        # i.e. make a Dispatch class that shares the '_listen' method
+        # of the Event class, this is the straight monkeypatch.
+        if hasattr(cls, "dispatch"):
+            dispatch_base = cls.dispatch.__class__
+        else:
+            dispatch_base = _Dispatch
+
+        event_names = [k for k in dict_ if _is_event_name(k)]
+        dispatch_cls = cast(
+            "Type[_Dispatch[_ET]]",
+            type(
+                "%sDispatch" % classname,
+                (dispatch_base,),
+                {"__slots__": event_names},
+            ),
+        )
+
+        dispatch_cls._event_names = event_names
+        dispatch_inst = cls._set_dispatch(cls, dispatch_cls)
+        for k in dispatch_cls._event_names:
+            setattr(dispatch_inst, k, _ClsLevelDispatch(cls, dict_[k]))
+            _registrars[k].append(cls)
+
+        for super_ in dispatch_cls.__bases__:
+            if issubclass(super_, _Dispatch) and super_ is not _Dispatch:
+                for ls in super_._events.dispatch._event_descriptors:
+                    setattr(dispatch_inst, ls.name, ls)
+                    dispatch_cls._event_names.append(ls.name)
+
+        if getattr(cls, "_dispatch_target", None):
+            dispatch_target_cls = cls._dispatch_target
+            assert dispatch_target_cls is not None
+            if (
+                hasattr(dispatch_target_cls, "__slots__")
+                and "_slots_dispatch" in dispatch_target_cls.__slots__
+            ):
+                dispatch_target_cls.dispatch = slots_dispatcher(cls)
+            else:
+                dispatch_target_cls.dispatch = dispatcher(cls)
+
+
+class Events(_HasEventsDispatch[_ET]):
+    """Define event listening functions for a particular target type."""
+
+    @classmethod
+    def _accept_with(
+        cls, target: Union[_ET, Type[_ET]], identifier: str
+    ) -> Optional[Union[_ET, Type[_ET]]]:
+        def dispatch_is(*types: Type[Any]) -> bool:
+            return all(isinstance(target.dispatch, t) for t in types)
+
+        def dispatch_parent_is(t: Type[Any]) -> bool:
+            return isinstance(
+                cast("_JoinedDispatcher[_ET]", target.dispatch).parent, t
+            )
+
+        # Mapper, ClassManager, Session override this to
+        # also accept classes, scoped_sessions, sessionmakers, etc.
+        if hasattr(target, "dispatch"):
+            if (
+                dispatch_is(cls.dispatch.__class__)
+                or dispatch_is(type, cls.dispatch.__class__)
+                or (
+                    dispatch_is(_JoinedDispatcher)
+                    and dispatch_parent_is(cls.dispatch.__class__)
+                )
+            ):
+                return target
+
+        return None
+
+    @classmethod
+    def _listen(
+        cls,
+        event_key: _EventKey[_ET],
+        *,
+        propagate: bool = False,
+        insert: bool = False,
+        named: bool = False,
+        asyncio: bool = False,
+    ) -> None:
+        event_key.base_listen(
+            propagate=propagate, insert=insert, named=named, asyncio=asyncio
+        )
+
+    @classmethod
+    def _remove(cls, event_key: _EventKey[_ET]) -> None:
+        event_key.remove()
+
+    @classmethod
+    def _clear(cls) -> None:
+        cls.dispatch._clear()
+
+
+class _JoinedDispatcher(_DispatchCommon[_ET]):
+    """Represent a connection between two _Dispatch objects."""
+
+    __slots__ = "local", "parent", "_instance_cls"
+
+    local: _DispatchCommon[_ET]
+    parent: _DispatchCommon[_ET]
+    _instance_cls: Optional[Type[_ET]]
+
+    def __init__(
+        self, local: _DispatchCommon[_ET], parent: _DispatchCommon[_ET]
+    ):
+        self.local = local
+        self.parent = parent
+        self._instance_cls = self.local._instance_cls
+
+    def __getattr__(self, name: str) -> _JoinedListener[_ET]:
+        # Assign _JoinedListeners as attributes on demand
+        # to reduce startup time for new dispatch objects.
+        ls = getattr(self.local, name)
+        jl = _JoinedListener(self.parent, ls.name, ls)
+        setattr(self, ls.name, jl)
+        return jl
+
+    def _listen(self, event_key: _EventKey[_ET], **kw: Any) -> None:
+        return self.parent._listen(event_key, **kw)
+
+    @property
+    def _events(self) -> Type[_HasEventsDispatch[_ET]]:
+        return self.parent._events
+
+
+class dispatcher(Generic[_ET]):
+    """Descriptor used by target classes to
+    deliver the _Dispatch class at the class level
+    and produce new _Dispatch instances for target
+    instances.
+
+    """
+
+    def __init__(self, events: Type[_HasEventsDispatch[_ET]]):
+        self.dispatch = events.dispatch
+        self.events = events
+
+    @overload
+    def __get__(
+        self, obj: Literal[None], cls: Type[Any]
+    ) -> Type[_Dispatch[_ET]]: ...
+
+    @overload
+    def __get__(self, obj: Any, cls: Type[Any]) -> _DispatchCommon[_ET]: ...
+
+    def __get__(self, obj: Any, cls: Type[Any]) -> Any:
+        if obj is None:
+            return self.dispatch
+
+        disp = self.dispatch._for_instance(obj)
+        try:
+            obj.__dict__["dispatch"] = disp
+        except AttributeError as ae:
+            raise TypeError(
+                "target %r doesn't have __dict__, should it be "
+                "defining _slots_dispatch?" % (obj,)
+            ) from ae
+        return disp
+
+
+class slots_dispatcher(dispatcher[_ET]):
+    def __get__(self, obj: Any, cls: Type[Any]) -> Any:
+        if obj is None:
+            return self.dispatch
+
+        if hasattr(obj, "_slots_dispatch"):
+            return obj._slots_dispatch
+
+        disp = self.dispatch._for_instance(obj)
+        obj._slots_dispatch = disp
+        return disp