human
Solve the following python programming problem given the following code:
def get_headers(self, include_additional_headers = False) : 
    '
        Return a list of headers for a csv file.
        ' 
    def shorten(xpath) : 
        l = xpath.split ('/') 
        return '/'.join (l [2 :]) 
header_list = [shorten (xpath) for xpath in self.xpaths ()] 
    header_list += [UUID, SUBMISSION_TIME, TAGS, NOTES] 
    if xpath : 
        header_list += self._additional_headers () 
return header_list 

    
    

    Fix the buggy line: if xpath :
assistant
#Here is Python program to fix the buggy line: if xpath :
.

if include_additional_headers :