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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _update_known_atts(self, **kwargs):
 """Updates instance attributes with supplied keyword arguments. """

        for k, v in kwargs.items():
            if k not in ATTR_KEYS:
                # Warn if passed in unknown kwargs
                raise SyntaxWarning('Unknown argument: {}'.format(k))
            elif not v: # Delete attributes with falsey values
                delattr(self, k)
            else:
                setattr(self, k, v)