code: def listAttachments(self, oid):
          
          url = self._url + "/%s/attachments" % oid
          params = {
              "f":"json"
          }
          return self._get(url, params,
                              securityHandler=self._securityHandler,
                              proxy_port=self._proxy_port,
                              proxy_url=self._proxy_url)
docs: list attachements for a given OBJECT ID