<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_device_topology(self, id_or_uri):
 """ Retrieves the topology information for the rack resource specified by ID or URI. Args: id_or_uri: Can be either the resource ID or the resource URI. Return: dict: Device topology. """

        uri = self._client.build_uri(id_or_uri) + "/deviceTopology"
        return self._client.get(uri)