human
Solve the following python programming problem given the following code:
@ validateLogging (None) 
def test_writeTraceback(self, logger) : 
    '
        L{writeTraceback} writes the current traceback to the log.
        ' 
    e = None 
    def raiser() : 
        raise RuntimeError ('because') 
try : 
        raiser () 
except Exception as exception : 
        expectedTraceback = traceback.format_exc () 
        writeTraceback (logger) 
        e = exception 
lines = expectedTraceback.split ('
') 
    expectedTraceback = '
'.join ([l for l in lines if (not l.startswith ('    '))]) 
    message = logger.messages [0] 
    assertContainsFields (message, message, { 
        'message_type' : 'eliot:traceback', 
        'exception' : RuntimeError, 
        'reason' : e, 
        'traceback' : expectedTraceback, 
}) 
    logger.flushTracebacks (RuntimeError) 

    
    

    Fix the buggy line: assertContainsFields (message, message, {
assistant
#Here is Python program to fix the buggy line: assertContainsFields (message, message, {
.

assertContainsFields (self, message, {