human
Complete the below
def instantiateAddCallbacksAfterResult(n):

    ''''Create a deferred, shoots it and then adds a trivial callback/errback/both
    to it the given number of times. The result is processed through the
    callbacks as they are added.'
    '''
 Write me a the Python code you requested?
assistant
#Here is the Python code you requested.
    d = defer.Deferred()
    def f(result):
        return result
    d.callback(1)
    for i in xrange(n):
        d.addCallback(f)
        d.addErrback(f)
        d.addBoth(f)
        d.addCallbacks(f)