<s> from sqlalchemy import MetaData , Column , Table <EOL> from sqlalchemy import String <EOL> def upgrade ( migrate_engine ) : <EOL> """<STR_LIT>""" <EOL> meta = MetaData ( bind = migrate_engine ) <EOL> instances = Table ( '<STR_LIT>' , meta , autoload = True ) <EOL> shadow_instances = Table ( '<STR_LIT>' , meta , autoload = True ) <EOL> ephemeral_key_uuid = Column ( '<STR_LIT>' , String ( <NUM_LIT> ) ) <EOL> instances . create_column ( ephemeral_key_uuid ) <EOL> shadow_instances . create_column ( ephemeral_key_uuid . copy ( ) ) <EOL> migrate_engine . execute ( instances . update ( ) . <EOL> values ( ephemeral_key_uuid = None ) ) <EOL> migrate_engine . execute ( shadow_instances . update ( ) . <EOL> values ( ephemeral_key_uuid = None ) ) </s>
