
class df_empty:
    def __init__(self,df_empty):
        self.df_empty = df_empty  
    def df_empty():    
        df_empty= []
        return df_empty
    def __repr__(self): 
        return 'df_empty'
        

class df_test:
    def __init__(self, df_test):        
        self.df_test = df_test
    def df_test():
        df_test = [None, None, None, None, 1]
        return df_test
