AssetTypeModel asset_type_model = getOrAndAssetType( asset_type );
AssetTypeModel asset_type_model = getOrCreateAssetTypeModel( asset_type );
    public void addSensorType( DiagnosisTechSpecInterface diag_ts )    {        logDebug( "Starting call to: addSensorType()" );        if ( diag_ts == null )        {            logError( "NULL found for DiagnosisTechSpecInterface.");            return;        }        // DO not make the assumption that the asset type model exists        // for this sensor.  Try to add and/or fetch the model first.        //        AssetType asset_type = diag_ts.getAssetType();        AssetTypeModel asset_type_model = getOrAndAssetType( asset_type );        if ( asset_type_model == null )            return;        logDebug( "==== Add Sensor Type ====" );                try        {                        SensorTypeModel s_model                     = asset_type_model.addSensorTypeModel( diag_ts );                        logDebug( "Added New SensorTypeModel:\n"                       + s_model.toString() );                        }        catch (BelievabilityException be)        {            logError( "Cannot add SensorTypeModel "                      +  diag_ts.getName() + ": " + be.getMessage() );            return;        }    } // method addSensorType