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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 import_jwks(self, jwks, issuer):
 """ Imports all the keys that are represented in a JWKS :param jwks: Dictionary representation of a JWKS :param issuer: Who 'owns' the JWKS """

        try:
            _keys = jwks["keys"]
        except KeyError:
            raise ValueError('Not a proper JWKS')
        else:
            try:
                self.issuer_keys[issuer].append(
                    self.keybundle_cls(_keys, verify_ssl=self.verify_ssl))
            except KeyError:
                self.issuer_keys[issuer] = [self.keybundle_cls(
                    _keys, verify_ssl=self.verify_ssl)]