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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 content_get(self, cid, nid=None):
 """Get data from post `cid` in network `nid` :type nid: str :param nid: This is the ID of the network (or class) from which to query posts. This is optional and only to override the existing `network_id` entered when created the class :type cid: str|int :param cid: This is the post ID which we grab :returns: Python object containing returned data """

        r = self.request(
            method="content.get",
            data={"cid": cid},
            nid=nid
        )
        return self._handle_error(r, "Could not get post {}.".format(cid))