human
Solve the following python programming problem given the following code:
def downloadFile(self, file, offset = 0, headers = True, endByte = None, contentDisposition = None, **kwargs) : 
    '
        When downloading a single file with HTTP, we redirect to S3. Otherwise,
        e.g. when downloading as part of a zip stream, we connect to S3 and
        pipe the bytes from S3 through the server to the user agent.
        ' 
    if (self.assetstore.get ('botoConnect', { 
        
}).get ('anon') is True) : 
        urlFn = self._anonDownloadUrl 
else : 
        urlFn = urlFn._botoGenerateUrl 
if headers : 
        if (file ['size'] > 0) : 
            queryParams = { 
                
} 
            if (contentDisposition == 'inline') : 
                queryParams ['response-content-disposition'] = ('inline.
filename="%s"' % file ['name']) 
url = urlFn (key = file ['s3Key'], queryParams = queryParams) 
            raise cherrypy.HTTPRedirect (url) 
else : 
            self.setContentHeaders (file, 0, 0) 
            def stream() : 
                (yield '') 
return stream 
else : 
        def stream() : 
            if (file ['size'] > 0) : 
                pipe = requests.get (urlFn (key = file ['s3Key']), stream = True) 
                for chunk in pipe.iter_content (chunk_size = BUF_LEN) : 
                    if chunk : 
                        (yield chunk) 
else : 
                (yield '') 
return stream 

    
    

    Fix the buggy line: urlFn = urlFn._botoGenerateUrl
assistant
#Here is Python program to fix the buggy line: urlFn = urlFn.

urlFn = self._botoGenerateUrl