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    \dS                     @   s<   d Z ddlmZ ddlZdZdZdZdZdd Z	dd	 Z
dS )
zlpreviw attachment

Revision ID: e20b16039f41
Revises: 00294e0be0fd
Create Date: 2022-04-27 08:06:59.629165

    )opNe20b16039f41Z00294e0be0fdc                   C   sD   t dtjdtjdddd t dtjdtjdddd d S )Ncmf_attachmenturl_preview   )lengthT)nullableurl_preview_img)r   
add_columnsaColumnString r   r   ?/opt/eva-app/alembic/versions/e20b16039f41_previw_attachment.pyupgrade   s     r   c                   C   s   t dd t dd d S )Nr   r	   r   )r   drop_columnr   r   r   r   	downgrade   s    r   )__doc__alembicr   
sqlalchemyr   revisiondown_revisionbranch_labels
depends_onr   r   r   r   r   r   <module>   s   