human
Solve the following python programming problem given the following code:
def main() : 
    flow = Flow () 
    input = flow.source (Hfs (TextLine (), 'pycascading_data/town.txt')) 
    out_folder = 'pycascading_data/maps/' 
    @ udf (produces = 'word') 
    def decorated_udf(tuple) : 
        for word in tuple.get ('line').split () : 
            (yield [word]) 
def undecorated_udf(tuple) : 
        for word in tuple.get ('line').split () : 
            (yield [word]) 
((input | map_replace (input)) | flow.tsv_sink ((out_folder + 'decorated_udf'))) 
    ((input | map_replace (undecorated_udf)) | flow.tsv_sink ((out_folder + 'undecorated_udf'))) 
    ((input | map_replace (1, undecorated_udf)) | flow.tsv_sink ((out_folder + 'undecorated_udf_with_input_args'))) 
    ((input | map_replace (undecorated_udf, 'word')) | flow.tsv_sink ((out_folder + 'undecorated_udf_with_output_fields'))) 
    ((input | map_add (decorated_udf)) | flow.tsv_sink ((out_folder + 'decorated_udf_all'))) 
    ((input | map_add (1, undecorated_udf, 'word')) | flow.tsv_sink ((out_folder + 'undecorated_udf_all'))) 
    flow.run (num_reducers = 1) 

    
    

    Fix the buggy line: ((input | map_replace (input)) | flow.tsv_sink ((out_folder + 'decorated_udf')))
assistant
#Here is Python program to fix the buggy line: ((input | map_replace (input)) | flow.

((input | map_replace (decorated_udf)) | flow.tsv_sink ((out_folder + 'decorated_udf')))