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    ïÅ[hÖ  ã                   @   sD   d Z ddlmZ ddlmZ e e¡Zddd„Zdd„ Zd	d
„ Z	dS )a#  The inspection module provides the :func:`_sa.inspect` function,
which delivers runtime information about a wide variety
of SQLAlchemy objects, both within the Core as well as the
ORM.

The :func:`_sa.inspect` function is the entry point to SQLAlchemy's
public API for viewing the configuration and construction
of in-memory objects.   Depending on the type of object
passed to :func:`_sa.inspect`, the return value will either be
a related object which provides a known interface, or in many
cases it will return the object itself.

The rationale for :func:`_sa.inspect` is twofold.  One is that
it replaces the need to be aware of a large variety of "information
getting" functions in SQLAlchemy, such as
:meth:`_reflection.Inspector.from_engine`,
:func:`.orm.attributes.instance_state`, :func:`_orm.class_mapper`,
and others.    The other is that the return value of :func:`_sa.inspect`
is guaranteed to obey a documented API, thus allowing third party
tools which build on top of SQLAlchemy configurations to be constructed
in a forwards-compatible way.

é   )Úexc)ÚutilTc                 C   sv   t | ƒ}|jD ]}|tv r#t| }|du r|   S || ƒ}|dur# nqd }}|r9|du s2|du r9t d| ¡‚|S )a²  Produce an inspection object for the given target.

    The returned value in some cases may be the
    same object as the one given, such as if a
    :class:`_orm.Mapper` object is passed.   In other
    cases, it will be an instance of the registered
    inspection type for the given object, such as
    if an :class:`_engine.Engine` is passed, an
    :class:`_reflection.Inspector` object is returned.

    :param subject: the subject to be inspected.
    :param raiseerr: When ``True``, if the given subject
     does not
     correspond to a known SQLAlchemy inspected type,
     :class:`sqlalchemy.exc.NoInspectionAvailable`
     is raised.  If ``False``, ``None`` is returned.

    TNz7No inspection system is available for object of type %s)ÚtypeÚ__mro__Ú_registrarsr   ZNoInspectionAvailable)ÚsubjectZraiseerrÚtype_ÚclsÚregÚret© r   ú|/home/ubuntu/experiments/live_experiments/Pythonexperiments/Otree/venv/lib/python3.10/site-packages/sqlalchemy/inspection.pyÚinspect'   s$   
€ÿÿr   c                     s   ‡ fdd„}|S )Nc                    s*   ˆ D ]}|t v rtd| ƒ‚| t |< q| S )NzType %s is already registered)r   ÚAssertionError)Z	fn_or_clsr   ©Útypesr   r   ÚdecorateO   s   ÿ
z_inspects.<locals>.decorater   )r   r   r   r   r   Ú	_inspectsN   s   	r   c                 C   s   t | ƒdƒ | S )NT)r   )r	   r   r   r   Ú_self_inspects[   s   r   N)T)
Ú__doc__Ú r   r   ÚdefaultdictÚlistr   r   r   r   r   r   r   r   Ú<module>   s   

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