
    9ib	              	          d dl mZ d dlmZ d dlmZmZ d dlmZ d dl	m
Z
 d dlmZmZ d dlmZmZ dZ G d	 d
ee   eeeef         Zy)    )annotations)Sequence)AnyGeneric)Self)MISSING)BaseChannelValue)EmptyChannelErrorInvalidUpdateError)EphemeralValuec                       e Zd ZU dZdZded<   ded<   dd fdZddZedd	       Z	edd
       Z
ddZddZddZddZddZddZ xZS )r   zJStores the value received in the step immediately preceding, clears after.)valueguardzValue | Anyr   boolr   c                H    t         |   |       || _        t        | _        y N)super__init__r   r   r   )selftypr   	__class__s      l/var/www/html/backtest/airagagent/rag_env/lib/python3.12/site-packages/langgraph/channels/ephemeral_value.pyr   zEphemeralValue.__init__   s    

    c                X    t        |t              xr |j                  | j                  k(  S r   )
isinstancer   r   )r   r   s     r   __eq__zEphemeralValue.__eq__   s!    %0NU[[DJJ5NNr   c                    | j                   S )z,The type of the value stored in the channel.r   r   s    r   	ValueTypezEphemeralValue.ValueType        xxr   c                    | j                   S )z/The type of the update received by the channel.r   r    s    r   
UpdateTypezEphemeralValue.UpdateType$   r"   r   c                    | j                  | j                  | j                        }| j                  |_        | j                  |_        |S )zReturn a copy of the channel.)r   r   r   keyr   )r   emptys     r   copyzEphemeralValue.copy)   s5    txx4HH	jjr   c                    | j                  | j                  | j                        }| j                  |_        |t        ur||_        |S r   )r   r   r   r&   r   r   )r   
checkpointr'   s      r   from_checkpointzEphemeralValue.from_checkpoint0   s9    txx4HH	W$$EKr   c                    t        |      dk(  r| j                  t        urt        | _        yyt        |      dk7  r%| j                  rt	        d| j
                   d      |d   | _        y)Nr   TF   zAt key 'z': EphemeralValue(guard=True) can receive only one value per step. Use guard=False if you want to store any one of multiple values.)lenr   r   r   r   r&   )r   valuess     r   updatezEphemeralValue.update7   sm    v;!zz($
v;!

$488*  %h  i  BZ
r   c                R    | j                   t        u r
t               | j                   S r   )r   r   r   r    s    r   getzEphemeralValue.getF   s!    :: #%%zzr   c                &    | j                   t        uS r   )r   r   r    s    r   is_availablezEphemeralValue.is_availableK   s    zz((r   c                    | j                   S r   )r   r    s    r   r*   zEphemeralValue.checkpointN   s    zzr   )T)r   r   r   r   returnNone)r   objectr7   r   )r7   ztype[Value])r7   r   )r*   r
   r7   r   )r0   zSequence[Value]r7   r   )r7   r
   )r7   r   )__name__
__module____qualname____doc__	__slots____annotations__r   r   propertyr!   r$   r(   r+   r1   r3   r5   r*   __classcell__)r   s   @r   r   r      sg    T"IK
O    
)r   r   N)
__future__r   collections.abcr   typingr   r   typing_extensionsr   langgraph._internal._typingr   langgraph.channels.baser	   r
   langgraph.errorsr   r   __all__r    r   r   <module>rK      s?    " $  " / 6 B
@WU^[u1D%E @r   