<s> import DeepFried2 as df <EOL> class Concat ( df . Container ) : <EOL> def __init__ ( self , axis = <NUM_LIT:1> ) : <EOL> df . Container . __init__ ( self ) <EOL> self . axis = axis <EOL> def symb_forward ( self , symb_inputs ) : <EOL> assert isinstance ( symb_inputs , ( list , tuple ) ) , "<STR_LIT>" . format ( df . utils . typename ( self ) ) <EOL> return df . T . concatenate ( symb_inputs , self . axis ) </s>
