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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 post_comment(self, sharekey=None, comment=None):
 """ Post a comment on behalf of the current user to the SharedFile with the given sharekey. Args: sharekey (str):
 Sharekey of the SharedFile to which you'd like to post a comment. comment (str):
 Text of the comment to post. Returns: Comment object. """

        endpoint = '/api/sharedfile/{0}/comments'.format(sharekey)

        post_data = {'body': comment}

        data = self._make_request("POST", endpoint=endpoint, data=post_data)
        return Comment.NewFromJSON(data)