How to use the @gooddata/typings.VisualizationObject.isMeasureDefinition function in @gooddata/typings

function convertMeasureDefinition(definition: IMeasureDefinitionType): AFM.MeasureDefinition {
    if (VisualizationObject.isMeasureDefinition(definition)) {
        return convertSimpleMeasureDefinition(definition);
    } else if (VisualizationObject.isPopMeasureDefinition(definition)) {
        return convertPopMeasureDefinition(definition);
    } else if (VisualizationObject.isPreviousPeriodMeasureDefinition(definition)) {
        return convertPreviousPeriodMeasureDefinition(definition);
    } else if (VisualizationObject.isArithmeticMeasureDefinition(definition)) {
        return convertArithmeticMeasureDefinition(definition);
    } else {
        throw Error("The measure definition is not supported: " + JSON.stringify(definition));
    }
}

function getFormat(measure: IMeasure): string | undefined {
    const {
        measure: { definition },
    } = measure;
    const measureFormat = get(measure.measure, "format");

    if (VisualizationObject.isArithmeticMeasureDefinition(definition)) {
        if (definition.arithmeticMeasure.operator === "change") {
            return "#,##0.00%";
        }
    }

    const predefinedFormat = VisualizationObject.isMeasureDefinition(definition)
        ? getPredefinedFormat(definition)
        : undefined;

    return predefinedFormat || measureFormat;
}