human
Complete the below
def _set_decorators():

    ''''Tailored instrumentation wrappers for any set-like class.'
    '''
 ... Give me a the Python code you requested?
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#Here is the Python code you requested.
    def _tidy(fn):
        fn._sa_instrumented = True
        fn.__doc__ = getattr(set, fn.__name__).__doc__
    Unspecified = util.symbol('Unspecified')
    def add(fn):
        def add(self, value, _sa_initiator=None):
            if (value not in self):
                value = __set(self, value, _sa_initiator)
            fn(self, value)
        _tidy(add)
        return add
    def discard(fn):
        def discard(self, value, _sa_initiator=None):
            if (value in self):
                __del(self, value, _sa_initiator)
            fn(self, value)
        _tidy(discard)
        return discard
    def remove(fn):
        def remove(self, value, _sa_initiator=None):
            if (value in self):
                __del(self, value, _sa_initiator)
            fn(self, value)
        _tidy(remove)
        return remove
    def pop(fn):
        def pop(self):
            __before_delete(self)
            item = fn(self)
            __del(self, item)
            return item
        _tidy(pop)
        return pop
    def clear(fn):
        def clear(self):
            for item in list(self):
                self.remove(item)
        _tidy(clear)
        return clear
    def update(fn):
        def update(self, value):
            for item in value:
                self.add(item)
        _tidy(update)
        return update
    def __ior__(fn):
        def __ior__(self, value):
            if (not _set_binops_check_strict(self, value)):
                return NotImplemented
            for item in value:
                self.add(item)
            return self
        _tidy(__ior__)
        return __ior__
    def difference_update(fn):
        def difference_update(self, value):
            for item in value:
                self.discard(item)
        _tidy(difference_update)
        return difference_update
    def __isub__(fn):
        def __isub__(self, value):
            if (not _set_binops_check_strict(self, value)):
                return NotImplemented
            for item in value:
               ...