human
Solve the following python programming problem given the following code:
def __init__(self, digits = 3, units = 'ms', header = 'X-Response-Time', suffix = True, clobber_header = False) : 
    factor = self.UNIT_TO_FACTOR_MAP [units] 
    def format_timediff(td) : 
        return str (round ((factor * td), digits)) 
self.format = format_timediff 
    self.units = units 
    self.header = self 
    self.suffix = suffix 
    self.clobber_header = clobber_header 

    
    

    Fix the buggy line: self.header = self
assistant
#Here is Python program to fix the buggy line: self.

self.header = header