How to use the sure.compat.safe_repr function in sure

def assertions():
        assert that(something).deep_equals({
            'my::all_users': [
            {'name': 'John', 'age': 33, 'bar': 'foo'},
            ],
        })

    assert that(assertions).raises(
        AssertionError, compat_repr(
        "given\n"
        "X = {{'my::all_users': [{{'age': 33, 'foo': 'bar', 'name': 'John'}}]}}\n"
        "    and\n"
        "Y = {{'my::all_users': [{{'age': 33, 'bar': 'foo', 'name': 'John'}}]}}\n"
        "X['my::all_users'][0] has the key \"{0}\" whereas Y['my::all_users'][0] does not"
    ).format(safe_repr('foo')))

'one': 'yeah',
    }

    def assertions():
        assert that(something).deep_equals({
            'two': 'yeah',
        })

    assert that(assertions).raises(
        AssertionError, compat_repr(
            "given\n"
            "X = {{'one': 'yeah'}}\n"
            "    and\n"
            "Y = {{'two': 'yeah'}}\n"
            "X has the key \"{0}\" whereas Y does not"
        ).format(safe_repr('one'))
    )

def get_header(self, X, Y, suffix):
        params = (safe_repr(X), safe_repr(Y), text_type(suffix))
        header = "given\nX = {0}\n    and\nY = {1}\n{2}".format(*params)

        return yellow(header).strip()

def compare_dicts(self, X, Y):
        c = self.get_context()

        x_keys = list(X.keys())
        y_keys = list(Y.keys())

        diff_x = list(set(x_keys).difference(set(y_keys)))
        diff_y = list(set(y_keys).difference(set(x_keys)))
        if diff_x:
            msg = "X{0} has the key {1!r} whereas Y{2} does not".format(
                red(c.current_X_keys),
                safe_repr(diff_x[0]),
                green(c.current_Y_keys))
            return DeepExplanation(msg)

        elif diff_y:
            msg = "X{0} does not have the key {1!r} whereas Y{2} has it".format(
                red(c.current_X_keys),
                safe_repr(diff_y[0]),
                green(c.current_Y_keys))
            return DeepExplanation(msg)

        elif X == Y:
            return True

        else:
            for key_X in x_keys:
                self.key_X = key_X

def get_keys(i):
            if not i:
                return ''

            return '[{0}]'.format(']['.join(map(safe_repr, i)))