logDetail( "==== getSensorLatency() ====" );
if ( _logger.isDetailEnabled() ) _logger.detail( "==== getSensorLatency() ====" );
    public long getSensorLatency( AssetType asset_type,                                  String sensor_name )            throws BelievabilityException    {        logDetail( "==== getSensorLatency() ====" );        AssetTypeModel at_model                 =  (AssetTypeModel) _asset_type_container.get                ( asset_type.getName() );                if ( at_model == null )        {            throw new BelievabilityException                    ( "ModelManager.getSensorLatency()",                      "Cannot find asset type model." );        }        return at_model.getSensorLatency( sensor_name );    } // method getSensorLatency