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편집 파일: session.cpython-38.pyc
U -?�f� � @ s d dl mZ d dlZd dlmZ d dlmZ d dlmZ d dlmZ d dlmZ d dlm Z d d lm Z d d lm Z d d lm Z d d lm Z d d lmZ d dlmZ d dlmZ d dlmZ d dlmZ d dlmZ d dlmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlm Z ddlm Z dd lm Z dd l m Z! dd l m"Z" dd l m#Z# dd l m$Z$ dd!l m%Z& dd"l'm(Z( dd#l)m*Z* dd$l)m+Z+ e�r�dd%lm,Z, dd&lm-Z- dd'lm.Z. dd(lm/Z/ dd)lm0Z0 dd*lm1Z1 dd+lm2Z2 dd,lm3Z3 dd-lm4Z4 dd.l5m6Z6 dd/l5m7Z7 dd0l8m9Z9 dd1l:m;Z; dd2l:m<Z< dd3l:m=Z= dd4l>m?Z? dd5l@mAZA dd6lBmCZC dd7lBmDZD dd8lBmEZE dd9lBmFZF dd:lBmGZG dd;lHmIZI dd<lJmKZK dd=lLmMZM dd>lNmOZO dd?lPmQZQ dd@lPmRZR edA ZSe+dB�ZTedCedD�ZUe �VdEdFi�ZWe �VdGdFi�ZXG dHdI� dI�ZYe jZe#dJdKdLdMgdNdOdPdQdRdSdTdUdVdWdXg dYdZd[d\d]d^d_d`gda�G dbdc� dcee# ��Z[edddcdD�Z\G dedf� dfe e\ �Z]G dgdh� dhe e\ �Z^G didj� djee$ edj �Z_dkdldm�dndo�Z`dpdldq�drds�Zadtdu�dvdw�Z eae&_bdS )x� )� annotationsN)�Any)� Awaitable)�Callable)�cast)�Dict)�Generic)�Iterable)�Iterator)�NoReturn)�Optional)�overload)�Sequence)�Tuple)�Type)� TYPE_CHECKING)�TypeVar)�Union� )�engine)�ReversibleProxy)�StartableContext)�_ensure_sync_result)� AsyncResult)�AsyncScalarResult� )�util��close_all_sessions)�object_session)�Session)�SessionTransaction)�state)�greenlet_spawn)� Concatenate)� ParamSpec)�AsyncConnection)� AsyncEngine)� Connection)� CursorResult)�Engine)�Result)�Row)� RowMapping)� ScalarResult)�_CoreAnyExecuteParams)�CoreExecuteOptionsParameter)� dispatcher)�_IdentityKeyType)�_O)�OrmExecuteOptionsParameter)� IdentityMap)� ORMOption)�_BindArguments)�_EntityBindKey)�_PKIdentityArgument)� _SessionBind)�_SessionBindKey)� _InfoType)� Executable)� UpdateBase)� ClauseElement)�ForUpdateParameter)�TypedReturnsRows)r' r& �_P�_T)�boundZprebuffer_rowsTZstream_resultsc @ s0 e Zd ZdZG dd� d�Zedd�dd��ZdS ) � AsyncAttrsa0 Mixin class which provides an awaitable accessor for all attributes. E.g.:: from __future__ import annotations from typing import List from sqlalchemy import ForeignKey from sqlalchemy import func from sqlalchemy.ext.asyncio import AsyncAttrs from sqlalchemy.orm import DeclarativeBase from sqlalchemy.orm import Mapped from sqlalchemy.orm import mapped_column from sqlalchemy.orm import relationship class Base(AsyncAttrs, DeclarativeBase): pass class A(Base): __tablename__ = "a" id: Mapped[int] = mapped_column(primary_key=True) data: Mapped[str] bs: Mapped[List[B]] = relationship() class B(Base): __tablename__ = "b" id: Mapped[int] = mapped_column(primary_key=True) a_id: Mapped[int] = mapped_column(ForeignKey("a.id")) data: Mapped[str] In the above example, the :class:`_asyncio.AsyncAttrs` mixin is applied to the declarative ``Base`` class where it takes effect for all subclasses. This mixin adds a single new attribute :attr:`_asyncio.AsyncAttrs.awaitable_attrs` to all classes, which will yield the value of any attribute as an awaitable. This allows attributes which may be subject to lazy loading or deferred / unexpiry loading to be accessed such that IO can still be emitted:: a1 = (await async_session.scalars(select(A).where(A.id == 5))).one() # use the lazy loader on ``a1.bs`` via the ``.awaitable_attrs`` # interface, so that it may be awaited for b1 in await a1.awaitable_attrs.bs: print(b1) The :attr:`_asyncio.AsyncAttrs.awaitable_attrs` performs a call against the attribute that is approximately equivalent to using the :meth:`_asyncio.AsyncSession.run_sync` method, e.g.:: for b1 in await async_session.run_sync(lambda sess: a1.bs): print(b1) .. versionadded:: 2.0.13 .. seealso:: :ref:`asyncio_orm_avoid_lazyloads` c @ s. e Zd ZdZdd�dd�Zddd�d d �Zd S ) � AsyncAttrs._AsyncAttrGetitem� _instancer �rG c C s || _ d S �NrH )�selfrG � rK �N/opt/hc_python/lib64/python3.8/site-packages/sqlalchemy/ext/asyncio/session.py�__init__� s z%AsyncAttrs._AsyncAttrGetitem.__init__�strzAwaitable[Any])�name�returnc C s t t| j|�S rI )r# �getattrrG )rJ rO rK rK rL � __getattr__� s z(AsyncAttrs._AsyncAttrGetitem.__getattr__N)�__name__� __module__� __qualname__� __slots__rM rR rK rK rK rL �_AsyncAttrGetitem� s rW rF �rP c C s t �| �S )aV provide a namespace of all attributes on this object wrapped as awaitables. e.g.:: a1 = (await async_session.scalars(select(A).where(A.id == 5))).one() some_attribute = await a1.awaitable_attrs.some_deferred_attribute some_collection = await a1.awaitable_attrs.some_collection )rE rW �rJ rK rK rL �awaitable_attrs� s zAsyncAttrs.awaitable_attrsN)rS rT rU �__doc__rW �propertyrZ rK rK rK rL rE U s A rE z:class:`_orm.Session`z :class:`_asyncio.AsyncSession`r � identity_key� __contains__�__iter__�add�add_all�expire� expire_all�expunge� expunge_all� is_modified�in_transaction�in_nested_transaction�dirty�deleted�new� identity_map� is_active� autoflush� no_autoflush�info)Z classmethods�methods� attributesc @ sV e Zd ZU dZdZded< d�ddd�ddd d d �d d �ZeZded< ded< e dd�dd��Z d�ddddd�dd �Z d d d d d!�d"d#�Z e d�ejdddd$�d%d&d'd(d)d)d*d+�d,d-��Ze d�ejdddd$�d.d&d'd(d)d)d/d+�d0d-��Ze d�ejdddd$�d1d&d'd(d)d)d2d+�d3d-��Zd�ejdd4�d1d&d'd(d d2d5�d6d-�Ze d�ejdd4�d7d&d'd(d d8d5�d9d:��Ze d�ejdd4�d1d&d'd(d d d5�d;d:��Zd�ejdd4�d1d&d'd(d d d5�d<d:�Ze d�ejdd4�d7d&d'd(d d=d5�d>d?��Ze d�ejdd4�d1d&d'd(d d@d5�dAd?��Zd�ejdd4�d1d&d'd(d d@d5�dBd?�ZddCddejdD�dEdFdGdHdd)d'dIdJ�dKdL�ZddCddejdD�dEdFdGdHdd)d'dMdJ�dNdO�Ze d�ejdd4�d%d&d'd(d dPd5�dQdR��Ze d�ejdd4�d1d&d'd(d dSd5�dTdR��Zd�ejdd4�d1d&d'd(d dSd5�dUdR�Ze d�ejdd4�d7d&d'd(d dVd5�dWdX��Ze d�ejdd4�d1d&d'd(d dYd5�dZdX��Zd�ejdd4�d1d&d'd(d dYd5�d[dX�Zddd\�d]d^�Zddd_�dMdHdGdMd`�dadb�Zd�dcddd�dedf�Zdgd�dhdi�Zdgd�djdk�Zd�dldmdnd dodp�dqdr�Z d�d(dsd dtdu�dvdw�Z dxd�dydz�Z dxd�d{d|�Z dd�d}d~�Z dd�dd��Z!dd�d�d��Z"dd�d�d��Z#dd�d�d��Z$dd�d�d��Z%e e�&d�d��dd�d�d����Z'd�d�d��d�d��Z(d d d dd��d�d��Z)d�d�d��d�d��Z*ddHd\�d�d��Z+d�d�d�d��Z,d�ddHdd��d�d��Z-d�dd��d�d��Z.d�dddd��d�d��Z/dd�d�d��Z0ddd\�d�d��Z1dd�d�d��Z2d�ddHdHd��d�d��Z3dHd�d�d��Z4dHd�d�d��Z5e6d d�d�d���Z7e6d d�d�d���Z8e6d d�d�d���Z9e6d�d�d�d���Z:e:j;d�dd��d�d���Z:e6d d�d�d���Z<e6dHd�d�d���Z=e=j;dHdd��d�d���Z=e6d d�d�dĄ�Z>e6d d�d�dƄ�Z?e dd�d\�d�dɄ�Z@e d�ddddʜd�d�d)d�d)d�dϜd�dф�ZAdS )�� AsyncSessiona� Asyncio version of :class:`_orm.Session`. The :class:`_asyncio.AsyncSession` is a proxy for a traditional :class:`_orm.Session` instance. The :class:`_asyncio.AsyncSession` is **not safe for use in concurrent tasks.**. See :ref:`session_faq_threadsafe` for background. .. versionadded:: 1.4 To use an :class:`_asyncio.AsyncSession` with custom :class:`_orm.Session` implementations, see the :paramref:`_asyncio.AsyncSession.sync_session_class` parameter. Tzdispatcher[Session]�dispatchN)�binds�sync_session_class�Optional[_AsyncSessionBind]z2Optional[Dict[_SessionBindKey, _AsyncSessionBind]]zOptional[Type[Session]]r )�bindru rv �kwc K sj d }}|r || _ t�|�}|r8|| _dd� |�� D �}|rB|| _| �| jf ||d�|��� | _| _dS )a� Construct a new :class:`_asyncio.AsyncSession`. All parameters other than ``sync_session_class`` are passed to the ``sync_session_class`` callable directly to instantiate a new :class:`_orm.Session`. Refer to :meth:`_orm.Session.__init__` for parameter documentation. :param sync_session_class: A :class:`_orm.Session` subclass or other callable which will be used to construct the :class:`_orm.Session` which will be proxied. This parameter may be used to provide custom :class:`_orm.Session` subclasses. Defaults to the :attr:`_asyncio.AsyncSession.sync_session_class` class-level attribute. .. versionadded:: 1.4.24 Nc S s i | ]\}}|t �|��qS rK )r � _get_sync_engine_or_connection)�.0�key�brK rK rL � <dictcomp> s � z)AsyncSession.__init__.<locals>.<dictcomp>)rx ru ) rx r rz ru �itemsrv �_assign_proxied� sync_session�_proxied)rJ rx ru rv ry Z sync_bindZ sync_bindsrK rK rL rM � s ��zAsyncSession.__init__z Type[Session]rv r r� r rX c C s t d��d S )Nztasynchronous events are not implemented at this time. Apply synchronous listeners to the AsyncSession.sync_session.)�NotImplementedError��clsrK rK rL �_no_async_engine_events0 s �z$AsyncSession._no_async_engine_events�objectzOptional[Iterable[str]]r@ �None)�instance�attribute_names�with_for_updaterP c � s t | jj|||d�I dH dS )a� Expire and refresh the attributes on the given instance. A query will be issued to the database and all attributes will be refreshed with their current database value. This is the async version of the :meth:`_orm.Session.refresh` method. See that method for a complete description of all options. .. seealso:: :meth:`_orm.Session.refresh` - main documentation for refresh )r� r� N)r# r� �refresh)rJ r� r� r� rK rK rL r� 7 s �zAsyncSession.refreshz&Callable[Concatenate[Session, _P], _T]z_P.argsz _P.kwargsrC )�fn�argry rP c � s" t || jf|�ddi|��I dH S )a� Invoke the given synchronous (i.e. not async) callable, passing a synchronous-style :class:`_orm.Session` as the first argument. This method allows traditional synchronous SQLAlchemy functions to run within the context of an asyncio application. E.g.:: def some_business_method(session: Session, param: str) -> str: '''A synchronous function that does not require awaiting :param session: a SQLAlchemy Session, used synchronously :return: an optional return value is supported ''' session.add(MyObject(param=param)) session.flush() return "success" async def do_something_async(async_engine: AsyncEngine) -> None: '''an async function that uses awaiting''' with AsyncSession(async_engine) as async_session: # run some_business_method() with a sync-style # Session, proxied into an awaitable return_code = await async_session.run_sync(some_business_method, param="param1") print(return_code) This method maintains the asyncio event loop all the way through to the database connection by running the given callable in a specially instrumented greenlet. .. tip:: The provided callable is invoked inline within the asyncio event loop, and will block on traditional IO calls. IO within this callable should only call into SQLAlchemy's asyncio database APIs which will be properly adapted to the greenlet context. .. seealso:: :class:`.AsyncAttrs` - a mixin for ORM mapped classes that provides a similar feature more succinctly on a per-attribute basis :meth:`.AsyncConnection.run_sync` :ref:`session_run_sync` Z_require_awaitFN)r# r� )rJ r� r� ry rK rK rL �run_syncR s : ����zAsyncSession.run_sync)�execution_options�bind_arguments�_parent_execute_state� _add_eventzTypedReturnsRows[_T]z Optional[_CoreAnyExecuteParams]r4 zOptional[_BindArguments]z Optional[Any]z Result[_T])� statement�paramsr� r� r� r� rP c � s d S rI rK �rJ r� r� r� r� r� r� rK rK rL �execute� s zAsyncSession.executer> zCursorResult[Any]c � s d S rI rK r� rK rK rL r� � s r= z Result[Any]c � s d S rI rK r� rK rK rL r� � s )r� r� )r� r� r� r� ry rP c � sP |rt �|��t�}nt}t| jj|f|||d�|��I dH }t|| j�I dH S )z�Execute a statement and return a buffered :class:`_engine.Result` object. .. seealso:: :meth:`_orm.Session.execute` - main documentation for execute �r� r� r� N)r � immutabledict�union�_EXECUTE_OPTIONSr# r� r� r �rJ r� r� r� r� ry �resultrK rK rL r� � s ���� zTypedReturnsRows[Tuple[_T]]z Optional[_T]c � s d S rI rK �rJ r� r� r� r� ry rK rK rL �scalar� s zAsyncSession.scalarc � s d S rI rK r� rK rK rL r� � s c � s> |rt �|��t�}nt}t| jj|f|||d�|��I dH S )z�Execute a statement and return a scalar result. .. seealso:: :meth:`_orm.Session.scalar` - main documentation for scalar r� N)r r� r� r� r# r� r� r� rK rK rL r� � s ����zScalarResult[_T]c � s d S rI rK r� rK rK rL �scalars s zAsyncSession.scalarszScalarResult[Any]c � s d S rI rK r� rK rK rL r� s c � s( | j |f|||d�|��I dH }|�� S )a� Execute a statement and return scalar results. :return: a :class:`_result.ScalarResult` object .. versionadded:: 1.4.24 Added :meth:`_asyncio.AsyncSession.scalars` .. versionadded:: 1.4.26 Added :meth:`_asyncio.async_scoped_session.scalars` .. seealso:: :meth:`_orm.Session.scalars` - main documentation for scalars :meth:`_asyncio.AsyncSession.stream_scalars` - streaming version r� N)r� r� r� rK rK rL r� $ s ��� F��options�populate_existingr� �identity_tokenr� z_EntityBindKey[_O]r9 z Optional[Sequence[ORMOption]]�boolzUnion[_O, None])�entity�identr� r� r� r� r� rP c � s( t td| jj�|||||||d�I dH S )z�Return an instance based on the given primary key identifier, or ``None`` if not found. .. seealso:: :meth:`_orm.Session.get` - main documentation for get �Callable[..., _O]r� N)r# r r� �get�rJ r� r� r� r� r� r� r� rK rK rL r� G s �zAsyncSession.getr3 c � s( t td| jj�|||||||d�I dH S )aO Return an instance based on the given primary key identifier, or raise an exception if not found. Raises ``sqlalchemy.orm.exc.NoResultFound`` if the query selects no rows. ..versionadded: 2.0.22 .. seealso:: :meth:`_orm.Session.get_one` - main documentation for get_one r� r� N)r# r r� �get_oner� rK rK rL r� g s �zAsyncSession.get_onezAsyncResult[_T]c � s d S rI rK r� rK rK rL �stream� s zAsyncSession.streamzAsyncResult[Any]c � s d S rI rK r� rK rK rL r� � s c � sF |rt �|��t�}nt}t| jj|f|||d�|��I dH }t|�S )zbExecute a statement and return a streaming :class:`_asyncio.AsyncResult` object. r� N)r r� r� �_STREAM_OPTIONSr# r� r� r r� rK rK rL r� � s ���� zAsyncScalarResult[_T]c � s d S rI rK r� rK rK rL �stream_scalars� s zAsyncSession.stream_scalarszAsyncScalarResult[Any]c � s d S rI rK r� rK rK rL r� � s c � s( | j |f|||d�|��I dH }|�� S )aR Execute a statement and return a stream of scalar results. :return: an :class:`_asyncio.AsyncScalarResult` object .. versionadded:: 1.4.24 .. seealso:: :meth:`_orm.Session.scalars` - main documentation for scalars :meth:`_asyncio.AsyncSession.scalars` - non streaming version r� N)r� r� r� rK rK rL r� � s ��� �r� rP c � s t | jj|�I dH dS )aT Mark an instance as deleted. The database delete operation occurs upon ``flush()``. As this operation may need to cascade along unloaded relationships, it is awaitable to allow for those queries to take place. .. seealso:: :meth:`_orm.Session.delete` - main documentation for delete N)r# r� �delete�rJ r� rK rK rL r� � s zAsyncSession.delete��loadr� )r� r� r� rP c � s t | jj|||d�I dH S )z�Copy the state of a given instance into a corresponding instance within this :class:`_asyncio.AsyncSession`. .. seealso:: :meth:`_orm.Session.merge` - main documentation for merge r� N)r# r� �merge)rJ r� r� r� rK rK rL r� s �zAsyncSession.mergezOptional[Sequence[Any]])�objectsrP c � s t | jj|d�I dH dS )z�Flush all the object changes to the database. .. seealso:: :meth:`_orm.Session.flush` - main documentation for flush )r� N)r# r� �flush)rJ r� rK rK rL r� s zAsyncSession.flushz!Optional[AsyncSessionTransaction]c C s$ | j �� }|dk r t�|�S dS dS )z�Return the current root transaction in progress, if any. :return: an :class:`_asyncio.AsyncSessionTransaction` object, or ``None``. .. versionadded:: 1.4.18 N)r� �get_transaction�AsyncSessionTransaction�_retrieve_proxy_for_target�rJ �transrK rK rL r� " s z AsyncSession.get_transactionc C s$ | j �� }|dk r t�|�S dS dS )z�Return the current nested transaction in progress, if any. :return: an :class:`_asyncio.AsyncSessionTransaction` object, or ``None``. .. versionadded:: 1.4.18 N)r� �get_nested_transactionr� r� r� rK rK rL r� 1 s z#AsyncSession.get_nested_transactionz Optional[_EntityBindKey[_O]]zOptional[ClauseElement]zOptional[_SessionBind]zUnion[Engine, Connection])�mapper�clauserx ry rP c K s | j jf |||d�|��S )a� Return a "bind" to which the synchronous proxied :class:`_orm.Session` is bound. Unlike the :meth:`_orm.Session.get_bind` method, this method is currently **not** used by this :class:`.AsyncSession` in any way in order to resolve engines for requests. .. note:: This method proxies directly to the :meth:`_orm.Session.get_bind` method, however is currently **not** useful as an override target, in contrast to that of the :meth:`_orm.Session.get_bind` method. The example below illustrates how to implement custom :meth:`_orm.Session.get_bind` schemes that work with :class:`.AsyncSession` and :class:`.AsyncEngine`. The pattern introduced at :ref:`session_custom_partitioning` illustrates how to apply a custom bind-lookup scheme to a :class:`_orm.Session` given a set of :class:`_engine.Engine` objects. To apply a corresponding :meth:`_orm.Session.get_bind` implementation for use with a :class:`.AsyncSession` and :class:`.AsyncEngine` objects, continue to subclass :class:`_orm.Session` and apply it to :class:`.AsyncSession` using :paramref:`.AsyncSession.sync_session_class`. The inner method must continue to return :class:`_engine.Engine` instances, which can be acquired from a :class:`_asyncio.AsyncEngine` using the :attr:`_asyncio.AsyncEngine.sync_engine` attribute:: # using example from "Custom Vertical Partitioning" import random from sqlalchemy.ext.asyncio import AsyncSession from sqlalchemy.ext.asyncio import create_async_engine from sqlalchemy.ext.asyncio import async_sessionmaker from sqlalchemy.orm import Session # construct async engines w/ async drivers engines = { 'leader':create_async_engine("sqlite+aiosqlite:///leader.db"), 'other':create_async_engine("sqlite+aiosqlite:///other.db"), 'follower1':create_async_engine("sqlite+aiosqlite:///follower1.db"), 'follower2':create_async_engine("sqlite+aiosqlite:///follower2.db"), } class RoutingSession(Session): def get_bind(self, mapper=None, clause=None, **kw): # within get_bind(), return sync engines if mapper and issubclass(mapper.class_, MyOtherClass): return engines['other'].sync_engine elif self._flushing or isinstance(clause, (Update, Delete)): return engines['leader'].sync_engine else: return engines[ random.choice(['follower1','follower2']) ].sync_engine # apply to AsyncSession using sync_session_class AsyncSessionMaker = async_sessionmaker( sync_session_class=RoutingSession ) The :meth:`_orm.Session.get_bind` method is called in a non-asyncio, implicitly non-blocking context in the same manner as ORM event hooks and functions that are invoked via :meth:`.AsyncSession.run_sync`, so routines that wish to run SQL commands inside of :meth:`_orm.Session.get_bind` can continue to do so using blocking-style code, which will be translated to implicitly async calls at the point of invoking IO on the database drivers. )r� r� rx )r� �get_bind)rJ r� r� rx ry rK rK rL r� A s P ��zAsyncSession.get_bindz%Optional[CoreExecuteOptionsParameter]r& )r� r� ry rP c � s, t | jjf||d�|��I dH }tj�|�S )a Return a :class:`_asyncio.AsyncConnection` object corresponding to this :class:`.Session` object's transactional state. This method may also be used to establish execution options for the database connection used by the current transaction. .. versionadded:: 1.4.24 Added \**kw arguments which are passed through to the underlying :meth:`_orm.Session.connection` method. .. seealso:: :meth:`_orm.Session.connection` - main documentation for "connection" )r� r� N)r# r� � connectionr r& r� )rJ r� r� ry Zsync_connectionrK rK rL r� � s ��� �zAsyncSession.connectionr� c C s t | �S )a� Return an :class:`_asyncio.AsyncSessionTransaction` object. The underlying :class:`_orm.Session` will perform the "begin" action when the :class:`_asyncio.AsyncSessionTransaction` object is entered:: async with async_session.begin(): # .. ORM transaction is begun Note that database IO will not normally occur when the session-level transaction is begun, as database transactions begin on an on-demand basis. However, the begin block is async to accommodate for a :meth:`_orm.SessionEvents.after_transaction_create` event hook that may perform IO. For a general description of ORM begin, see :meth:`_orm.Session.begin`. �r� rY rK rK rL �begin� s zAsyncSession.beginc C s t | dd�S )a� Return an :class:`_asyncio.AsyncSessionTransaction` object which will begin a "nested" transaction, e.g. SAVEPOINT. Behavior is the same as that of :meth:`_asyncio.AsyncSession.begin`. For a general description of ORM begin nested, see :meth:`_orm.Session.begin_nested`. .. seealso:: :ref:`aiosqlite_serializable` - special workarounds required with the SQLite asyncio driver in order for SAVEPOINT to work correctly. T)�nestedr� rY rK rK rL � begin_nested� s zAsyncSession.begin_nestedc � s t | jj�I dH dS )z�Rollback the current transaction in progress. .. seealso:: :meth:`_orm.Session.rollback` - main documentation for "rollback" N)r# r� �rollbackrY rK rK rL r� � s zAsyncSession.rollbackc � s t | jj�I dH dS )z�Commit the current transaction in progress. .. seealso:: :meth:`_orm.Session.commit` - main documentation for "commit" N)r# r� �commitrY rK rK rL r� � s zAsyncSession.commitc � s t | jj�I dH dS )a� Close out the transactional resources and ORM objects used by this :class:`_asyncio.AsyncSession`. .. seealso:: :meth:`_orm.Session.close` - main documentation for "close" :ref:`session_closing` - detail on the semantics of :meth:`_asyncio.AsyncSession.close` and :meth:`_asyncio.AsyncSession.reset`. N)r# r� �closerY rK rK rL r� � s zAsyncSession.closec � s t | jj�I dH dS )a� Close out the transactional resources and ORM objects used by this :class:`_orm.Session`, resetting the session to its initial state. .. versionadded:: 2.0.22 .. seealso:: :meth:`_orm.Session.reset` - main documentation for "reset" :ref:`session_closing` - detail on the semantics of :meth:`_asyncio.AsyncSession.close` and :meth:`_asyncio.AsyncSession.reset`. N)r# r� �resetrY rK rK rL r� s zAsyncSession.resetc � s | � � I dH dS )a A synonym for :meth:`_asyncio.AsyncSession.close`. The :meth:`_asyncio.AsyncSession.aclose` name is specifically to support the Python standard library ``@contextlib.aclosing`` context manager function. .. versionadded:: 2.0.20 N)r� rY rK rK rL �aclose s zAsyncSession.aclosec � s t | jj�I dH dS )z�Close this Session, using connection invalidation. For a complete description, see :meth:`_orm.Session.invalidate`. N)r# r� � invalidaterY rK rK rL r� ! s zAsyncSession.invalidatez2.0z�The :meth:`.AsyncSession.close_all` method is deprecated and will be removed in a future release. Please refer to :func:`_asyncio.close_all_sessions`.c � s t � I dH dS )z2Close all :class:`_asyncio.AsyncSession` sessions.Nr r� rK rK rL � close_all( s zAsyncSession.close_all�_AS)rJ rP c � s | S rI rK rY rK rK rL � __aenter__3 s zAsyncSession.__aenter__��type_�value� tracebackrP c � s" t �| �� �}t �|�I d H d S rI )�asyncio� create_taskr� �shield)rJ r� r� r� �taskrK rK rL � __aexit__6 s zAsyncSession.__aexit__� _AsyncSessionContextManager[_AS]c C s t | �S rI )�_AsyncSessionContextManagerrY rK rK rL �_maker_context_manager: s z#AsyncSession._maker_context_managerc C s | j �|�S )aK Return True if the instance is associated with this session. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. The instance may be pending or persistent within the Session for a result of True. )r� r^ r� rK rK rL r^ B s zAsyncSession.__contains__zIterator[object]c C s | j �� S )z�Iterate over all pending or persistent instances within this Session. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. )r� r_ rY rK rK rL r_ R s zAsyncSession.__iter__)r� �_warnrP c C s | j j||d�S )a: Place an object into this :class:`_orm.Session`. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. Objects that are in the :term:`transient` state when passed to the :meth:`_orm.Session.add` method will move to the :term:`pending` state, until the next flush, at which point they will move to the :term:`persistent` state. Objects that are in the :term:`detached` state when passed to the :meth:`_orm.Session.add` method will move to the :term:`persistent` state directly. If the transaction used by the :class:`_orm.Session` is rolled back, objects which were transient when they were passed to :meth:`_orm.Session.add` will be moved back to the :term:`transient` state, and will no longer be present within this :class:`_orm.Session`. .. seealso:: :meth:`_orm.Session.add_all` :ref:`session_adding` - at :ref:`session_basics` )r� )r� r` )rJ r� r� rK rK rL r` ` s zAsyncSession.addzIterable[object])� instancesrP c C s | j �|�S )a� Add the given collection of instances to this :class:`_orm.Session`. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. See the documentation for :meth:`_orm.Session.add` for a general behavioral description. .. seealso:: :meth:`_orm.Session.add` :ref:`session_adding` - at :ref:`session_basics` )r� ra )rJ r� rK rK rL ra � s zAsyncSession.add_all)r� r� rP c C s | j j||d�S )aa Expire the attributes on an instance. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. Marks the attributes of an instance as out of date. When an expired attribute is next accessed, a query will be issued to the :class:`.Session` object's current transactional context in order to load all expired attributes for the given instance. Note that a highly isolated transaction will return the same values as were previously read in that same transaction, regardless of changes in database state outside of that transaction. To expire all objects in the :class:`.Session` simultaneously, use :meth:`Session.expire_all`. The :class:`.Session` object's default behavior is to expire all state whenever the :meth:`Session.rollback` or :meth:`Session.commit` methods are called, so that new state can be loaded for the new transaction. For this reason, calling :meth:`Session.expire` only makes sense for the specific case that a non-ORM SQL statement was emitted in the current transaction. :param instance: The instance to be refreshed. :param attribute_names: optional list of string attribute names indicating a subset of attributes to be expired. .. seealso:: :ref:`session_expire` - introductory material :meth:`.Session.expire` :meth:`.Session.refresh` :meth:`_orm.Query.populate_existing` )r� )r� rb )rJ r� r� rK rK rL rb � s .zAsyncSession.expirec C s | j �� S )ak Expires all persistent instances within this Session. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. When any attributes on a persistent instance is next accessed, a query will be issued using the :class:`.Session` object's current transactional context in order to load all expired attributes for the given instance. Note that a highly isolated transaction will return the same values as were previously read in that same transaction, regardless of changes in database state outside of that transaction. To expire individual objects and individual attributes on those objects, use :meth:`Session.expire`. The :class:`.Session` object's default behavior is to expire all state whenever the :meth:`Session.rollback` or :meth:`Session.commit` methods are called, so that new state can be loaded for the new transaction. For this reason, calling :meth:`Session.expire_all` is not usually needed, assuming the transaction is isolated. .. seealso:: :ref:`session_expire` - introductory material :meth:`.Session.expire` :meth:`.Session.refresh` :meth:`_orm.Query.populate_existing` )r� rc rY rK rK rL rc � s 'zAsyncSession.expire_allc C s | j �|�S )ad Remove the `instance` from this ``Session``. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. This will free all internal references to the instance. Cascading will be applied according to the *expunge* cascade rule. )r� rd r� rK rK rL rd � s zAsyncSession.expungec C s | j �� S )aA Remove all object instances from this ``Session``. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. This is equivalent to calling ``expunge(obj)`` on all objects in this ``Session``. )r� re rY rK rK rL re s zAsyncSession.expunge_all)r� �include_collectionsrP c C s | j j||d�S )a� Return ``True`` if the given instance has locally modified attributes. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. This method retrieves the history for each instrumented attribute on the instance and performs a comparison of the current value to its previously flushed or committed value, if any. It is in effect a more expensive and accurate version of checking for the given instance in the :attr:`.Session.dirty` collection; a full test for each attribute's net "dirty" status is performed. E.g.:: return session.is_modified(someobject) A few caveats to this method apply: * Instances present in the :attr:`.Session.dirty` collection may report ``False`` when tested with this method. This is because the object may have received change events via attribute mutation, thus placing it in :attr:`.Session.dirty`, but ultimately the state is the same as that loaded from the database, resulting in no net change here. * Scalar attributes may not have recorded the previously set value when a new value was applied, if the attribute was not loaded, or was expired, at the time the new value was received - in these cases, the attribute is assumed to have a change, even if there is ultimately no net change against its database value. SQLAlchemy in most cases does not need the "old" value when a set event occurs, so it skips the expense of a SQL call if the old value isn't present, based on the assumption that an UPDATE of the scalar value is usually needed, and in those few cases where it isn't, is less expensive on average than issuing a defensive SELECT. The "old" value is fetched unconditionally upon set only if the attribute container has the ``active_history`` flag set to ``True``. This flag is set typically for primary key attributes and scalar object references that are not a simple many-to-one. To set this flag for any arbitrary mapped column, use the ``active_history`` argument with :func:`.column_property`. :param instance: mapped instance to be tested for pending changes. :param include_collections: Indicates if multivalued collections should be included in the operation. Setting this to ``False`` is a way to detect only local-column based properties (i.e. scalar columns or many-to-one foreign keys) that would result in an UPDATE for this instance upon flush. )r� )r� rf )rJ r� r� rK rK rL rf s < �zAsyncSession.is_modifiedc C s | j �� S )aO Return True if this :class:`_orm.Session` has begun a transaction. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. .. versionadded:: 1.4 .. seealso:: :attr:`_orm.Session.is_active` )r� rg rY rK rK rL rg Q s zAsyncSession.in_transactionc C s | j �� S )a+ Return True if this :class:`_orm.Session` has begun a nested transaction, e.g. SAVEPOINT. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. .. versionadded:: 1.4 )r� rh rY rK rK rL rh e s z"AsyncSession.in_nested_transactionc C s | j jS )a� The set of all persistent instances considered dirty. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. E.g.:: some_mapped_object in session.dirty Instances are considered dirty when they were modified but not deleted. Note that this 'dirty' calculation is 'optimistic'; most attribute-setting or collection modification operations will mark an instance as 'dirty' and place it in this set, even if there is no net change to the attribute's value. At flush time, the value of each attribute is compared to its previously saved value, and if there's no net change, no SQL operation will occur (this is a more expensive operation so it's only done at flush time). To check if an instance has actionable net changes to its attributes, use the :meth:`.Session.is_modified` method. )r� ri rY rK rK rL ri u s zAsyncSession.dirtyc C s | j jS )z�The set of all instances marked as 'deleted' within this ``Session`` .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. )r� rj rY rK rK rL rj � s zAsyncSession.deletedc C s | j jS )z�The set of all instances marked as 'new' within this ``Session``. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. )r� rk rY rK rK rL rk � s zAsyncSession.newr5 c C s | j jS )z�Proxy for the :attr:`_orm.Session.identity_map` attribute on behalf of the :class:`_asyncio.AsyncSession` class. �r� rl rY rK rK rL rl � s zAsyncSession.identity_map)�attrrP c C s || j _d S rI r� �rJ r� rK rK rL rl � s c C s | j jS )a� True if this :class:`.Session` not in "partial rollback" state. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. .. versionchanged:: 1.4 The :class:`_orm.Session` no longer begins a new transaction immediately, so this attribute will be False when the :class:`_orm.Session` is first instantiated. "partial rollback" state typically indicates that the flush process of the :class:`_orm.Session` has failed, and that the :meth:`_orm.Session.rollback` method must be emitted in order to fully roll back the transaction. If this :class:`_orm.Session` is not in a transaction at all, the :class:`_orm.Session` will autobegin when it is first used, so in this case :attr:`_orm.Session.is_active` will return True. Otherwise, if this :class:`_orm.Session` is within a transaction, and that transaction has not been rolled back internally, the :attr:`_orm.Session.is_active` will also return True. .. seealso:: :ref:`faq_session_rollback` :meth:`_orm.Session.in_transaction` )r� rm rY rK rK rL rm � s #zAsyncSession.is_activec C s | j jS )zProxy for the :attr:`_orm.Session.autoflush` attribute on behalf of the :class:`_asyncio.AsyncSession` class. �r� rn rY rK rK rL rn � s zAsyncSession.autoflushc C s || j _d S rI r� r� rK rK rL rn � s c C s | j jS )a Return a context manager that disables autoflush. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. e.g.:: with session.no_autoflush: some_object = SomeClass() session.add(some_object) # won't autoflush some_object.related_thing = session.query(SomeRelated).first() Operations that proceed within the ``with:`` block will not be subject to flushes occurring upon query access. This is useful when initializing a series of objects which involve existing database queries, where the uncompleted object should not yet be flushed. )r� ro rY rK rK rL ro � s zAsyncSession.no_autoflushc C s | j jS )a+ A user-modifiable dictionary. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. The initial value of this dictionary can be populated using the ``info`` argument to the :class:`.Session` constructor or :class:`.sessionmaker` constructor or factory methods. The dictionary here is always local to this :class:`.Session` and can be modified independently of all other :class:`.Session` objects. )r� rp rY rK rK rL rp s zAsyncSession.infozOptional[Session]c C s t �|�S )a Return the :class:`.Session` to which an object belongs. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. This is an alias of :func:`.object_session`. )r r )r� r� rK rK rL r s zAsyncSession.object_session)r� �rowr� zOptional[Type[Any]]zUnion[Any, Tuple[Any, ...]]z%Optional[Union[Row[Any], RowMapping]]z_IdentityKeyType[Any])�class_r� r� r� r� rP c C s t j|||||d�S )z�Return an identity key. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_asyncio.AsyncSession` class. This is an alias of :func:`.util.identity_key`. )r� r� r� r� r� )r r] )r� r� r� r� r� r� rK rK rL r] 0 s �zAsyncSession.identity_key)N)NN)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)NNN)NN)T)N)T)NN)BrS rT rU r[ Z _is_asyncio�__annotations__rM r rv � classmethodr� r� r� r r � EMPTY_DICTr� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� � deprecatedr� r� r� r� r^ r_ r` ra rb rc rd re rf rg rh r\ ri rj rk rl �setterrm rn ro rp r r] rK rK rK rL rs � s� ��. �> �� �� �� �� # �� �� �� ! �� �� �� (� %� $ �� �� �� �� �� �� � �V � �" �0) �@ $ ��rs r� c @ s� e Zd ZU dZded< ed#dddd�dddddd d �d d ��Zed$dddd�d ddddd d�dd ��Zd%edddd�dddddd d �dd �Zdd�dd�Zd dd�dd�Z d d d �d d �Z d d�d!d"�Z dS )&�async_sessionmakera� A configurable :class:`.AsyncSession` factory. The :class:`.async_sessionmaker` factory works in the same way as the :class:`.sessionmaker` factory, to generate new :class:`.AsyncSession` objects when called, creating them given the configurational arguments established here. e.g.:: from sqlalchemy.ext.asyncio import create_async_engine from sqlalchemy.ext.asyncio import AsyncSession from sqlalchemy.ext.asyncio import async_sessionmaker async def run_some_sql(async_session: async_sessionmaker[AsyncSession]) -> None: async with async_session() as session: session.add(SomeObject(data="object")) session.add(SomeOtherObject(name="other object")) await session.commit() async def main() -> None: # an AsyncEngine, which the AsyncSession will use for connection # resources engine = create_async_engine('postgresql+asyncpg://scott:tiger@localhost/') # create a reusable factory for new AsyncSession instances async_session = async_sessionmaker(engine) await run_some_sql(async_session) await engine.dispose() The :class:`.async_sessionmaker` is useful so that different parts of a program can create new :class:`.AsyncSession` objects with a fixed configuration established up front. Note that :class:`.AsyncSession` objects may also be instantiated directly when not using :class:`.async_sessionmaker`. .. versionadded:: 2.0 :class:`.async_sessionmaker` provides a :class:`.sessionmaker` class that's dedicated to the :class:`.AsyncSession` object, including pep-484 typing support. .. seealso:: :ref:`asyncio_orm` - shows example use :class:`.sessionmaker` - general overview of the :class:`.sessionmaker` architecture :ref:`session_getting` - introductory text on creating sessions using :class:`.sessionmaker`. z Type[_AS]r� .)rn �expire_on_commitrp rw r� zOptional[_InfoType]r )rx r� rn r� rp ry c K s d S rI rK �rJ rx r� rn r� rp ry rK rK rL rM � s zasync_sessionmaker.__init__z"'async_sessionmaker[AsyncSession]'�rJ rx rn r� rp ry c K s d S rI rK r� rK rK rL rM � s NT)r� rn r� rp c K s8 ||d< ||d< ||d< |dk r(||d< || _ || _dS )a Construct a new :class:`.async_sessionmaker`. All arguments here except for ``class_`` correspond to arguments accepted by :class:`.Session` directly. See the :meth:`.AsyncSession.__init__` docstring for more details on parameters. rx rn r� Nrp )ry r� r� rK rK rL rM � s r� rX c C s | � }|� � S )a� Produce a context manager that both provides a new :class:`_orm.AsyncSession` as well as a transaction that commits. e.g.:: async def main(): Session = async_sessionmaker(some_engine) async with Session.begin() as session: session.add(some_object) # commits transaction, closes session )r� )rJ �sessionrK rK rL r� � s zasync_sessionmaker.beginr� )�local_kwrP c K s\ | j �� D ]D\}}|dkrBd|krB|�� }|�|d � ||d< q |�||� q | jf |�S )a� Produce a new :class:`.AsyncSession` object using the configuration established in this :class:`.async_sessionmaker`. In Python, the ``__call__`` method is invoked on an object when it is "called" in the same way as a function:: AsyncSession = async_sessionmaker(async_engine, expire_on_commit=False) session = AsyncSession() # invokes sessionmaker.__call__() rp )ry r �copy�update� setdefaultr� )rJ r� �k�v�drK rK rL �__call__� s zasync_sessionmaker.__call__r� )�new_kwrP c K s | j �|� dS )z�(Re)configure the arguments for this async_sessionmaker. e.g.:: AsyncSession = async_sessionmaker(some_engine) AsyncSession.configure(bind=create_async_engine('sqlite+aiosqlite://')) N)ry r� )rJ r� rK rK rL � configure� s z async_sessionmaker.configurerN c C s, d| j j| jjd�dd� | j�� D ��f S )Nz%s(class_=%r, %s)z, c s s | ]\}}d ||f V qdS )z%s=%rNrK )r{ r� r� rK rK rL � <genexpr>� s z.async_sessionmaker.__repr__.<locals>.<genexpr>)� __class__rS r� �joinry r rY rK rK rL �__repr__� s �zasync_sessionmaker.__repr__).).)N) rS rT rU r[ r� r rM rs r� r� r� r� rK rK rK rL r� T s6 6 �� �� �� r� c @ sR e Zd ZU dZded< ded< dd�dd�Zdd �d d �Zd d d d d�dd�ZdS )r� )� async_sessionr� r� r� r� r� �r� c C s || _ d S rI r� )rJ r� rK rK rL rM s z$_AsyncSessionContextManager.__init__rX c � s" | j �� | _| j�� I d H | j S rI )r� r� r� r� rY rK rK rL r� s z&_AsyncSessionContextManager.__aenter__r r� r� c � s8 dd�� ���fdd� }t �|� �}t �|�I d H d S )Nr� rX c � s0 � j �����I d H � j�����I d H d S rI )r� r� r� rK �rJ r� r� r� rK rL �go s z1_AsyncSessionContextManager.__aexit__.<locals>.go)r� r� r� )rJ r� r� r� r� r� rK r� rL r� s z%_AsyncSessionContextManager.__aexit__N)rS rT rU rV r� rM r� r� rK rK rK rL r� � s r� c @ s� e Zd ZU dZdZded< ded< d ddd �d d �Zedd �d d��Zdd �dd�Z dd �dd�Z dd �dd�Z d dd d�dd�Z ddddd�d d �Z d S )!r� a� A wrapper for the ORM :class:`_orm.SessionTransaction` object. This object is provided so that a transaction-holding object for the :meth:`_asyncio.AsyncSession.begin` may be returned. The object supports both explicit calls to :meth:`_asyncio.AsyncSessionTransaction.commit` and :meth:`_asyncio.AsyncSessionTransaction.rollback`, as well as use as an async context manager. .. versionadded:: 1.4 )r� �sync_transactionr� rs r� z Optional[SessionTransaction]r� Fr� )r� r� c C s || _ || _d | _d S rI )r� r� r� )rJ r� r� rK rK rL rM + s z AsyncSessionTransaction.__init__rX c C s | � � d k o| � � jS rI )�_sync_transactionrm rY rK rK rL rm 0 s �z!AsyncSessionTransaction.is_activer! c C s | j s| �� | j S rI )r� Z_raise_for_not_startedrY rK rK rL r 7 s z)AsyncSessionTransaction._sync_transactionr� c � s t | �� j�I dH dS )z2Roll back this :class:`_asyncio.AsyncTransaction`.N)r# r r� rY rK rK rL r� < s z AsyncSessionTransaction.rollbackc � s t | �� j�I dH dS )z/Commit this :class:`_asyncio.AsyncTransaction`.N)r# r r� rY rK rK rL r� @ s z AsyncSessionTransaction.commit)� is_ctxmanagerrP c � s> | � t| jr| jjjn| jjj�I d H �| _|r:| j�� | S rI ) r� r# r� r� r� r� r� r� � __enter__)rJ r rK rK rL �startE s � �� z AsyncSessionTransaction.startr r� c � s t | �� j|||�I d H d S rI )r# r �__exit__)rJ r� r� r� rK rK rL r� S s �z!AsyncSessionTransaction.__aexit__N)F)F)rS rT rU r[ rV r� rM r\ rm r r� r� r r� rK rK rK rL r� s �r� r� zOptional[AsyncSession]r� c C s t | �}|dk rt|�S dS dS )a� Return the :class:`_asyncio.AsyncSession` to which the given instance belongs. This function makes use of the sync-API function :class:`_orm.object_session` to retrieve the :class:`_orm.Session` which refers to the given instance, and from there links it to the original :class:`_asyncio.AsyncSession`. If the :class:`_asyncio.AsyncSession` has been garbage collected, the return value is ``None``. This functionality is also available from the :attr:`_orm.InstanceState.async_session` accessor. :param instance: an ORM mapped instance :return: an :class:`_asyncio.AsyncSession` object, or ``None``. .. versionadded:: 1.4.18 N)r r� )r� r� rK rK rL �async_object_sessionY s r r )r� rP c C s t j| dd�S )a Return the :class:`_asyncio.AsyncSession` which is proxying the given :class:`_orm.Session` object, if any. :param session: a :class:`_orm.Session` instance. :return: a :class:`_asyncio.AsyncSession` instance, or ``None``. .. versionadded:: 1.4.18 F)Z regenerate)rs r� )r� rK rK rL r� v s r� r� rX c � s t t�I dH dS )z�Close all :class:`_asyncio.AsyncSession` sessions. .. versionadded:: 2.0.23 .. seealso:: :func:`.session.close_all_sessions` N)r# �_sync_close_all_sessionsrK rK rK rL r � s r )c� __future__r r� �typingr r r r r r r r r r r r r r r r r � r �baser r r� r r r r Zormr r r r r! r" Z_instance_stateZutil.concurrencyr# Z util.typingr$ r% r& r' r( r) r* r+ r, r- r. Zengine.interfacesr/ r0 �eventr1 Z orm._typingr2 r3 r4 Z orm.identityr5 Zorm.interfacesr6 Z orm.sessionr7 r8 r9 r: r; Z sql._typingr< Zsql.baser= Zsql.dmlr> Z sql.elementsr? Zsql.selectabler@ rA Z_AsyncSessionBindrB rC r� r� r� rE Zcreate_proxy_methodsrs r� r� r� r� r r� Z_async_providerrK rK rK rL �<module> s� ]��� ) �F