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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 get_comments(self, resource, before=None):
 """ Get comments for a file or URL. Retrieve a list of VirusTotal Community comments for a given file or URL. VirusTotal Community comments are user submitted reviews on a given item, these comments may contain anything from the in-the-wild locations of files up to fully-featured reverse engineering reports on a given sample. :param resource: Either an md5/sha1/sha256 hash of the file or the URL itself you want to retrieve. :param before: (optional) A datetime token that allows you to iterate over all comments on a specific item whenever it has been commented on more than 25 times. :return: JSON response - The application answers with the comments sorted in descending order according to their date. """

        params = dict(apikey=self.api_key, resource=resource, before=before)

        try:
            response = requests.get(self.base + 'comments/get', params=params, proxies=self.proxies)
        except requests.RequestException as e:
            return dict(error=e.message)

        return _return_response_and_status_code(response)