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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 _list_available_rest_versions(self):
 """Return a list of the REST API versions supported by the array"""

        url = "https://{0}/api/api_version".format(self._target)

        data = self._request("GET", url, reestablish_session=False)
        return data["version"]