public function createFeedComment($channelIdentifier, $postId, $accessToken, $comment)
    {
        if ($this->apiVersionIsGreaterThanV3() && !is_numeric($channelIdentifier)) {
            throw new InvalidIdentifierException('channel');
        }

        if (!is_string($comment)) {
            throw new InvalidTypeException('Comment', 'string', gettype($comment));
        }

        $params = [
            'content' => $comment,
        ];

        return $this->post(sprintf('feed/%s/posts/%s/comments', $channelIdentifier, $postId), $params, $accessToken);
    }