def update(self, iterable=None, **kwds):
if iterable is not None:
if isinstance(iterable, collections.abc.Mapping): # <5>
pairs = iterable.items()
else:
pairs = ((k, v) for k, v in iterable) # <6>
for key, value in pairs:
self[key] = value # <7>
if kwds:
self.update(kwds) # <8>
# END STRKEYDICT
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