How to use the @igo2/common.getEntityProperty function in @igo2/common

const olFeature = olFormat.readFeature(feature, {
    dataProjection: feature.projection,
    featureProjection: projectionOut
  });

  olFeature.setId(getEntityId(feature));

  if (feature.projection !== undefined) {
    olFeature.set('projection', feature.projection);
  }

  if (feature.extent !== undefined) {
    olFeature.set('extent', feature.extent);
  }

  const mapTitle = getEntityProperty(feature, 'meta.mapTitle');
  if (mapTitle !== undefined) {
    olFeature.set('mapTitle', mapTitle);
  }

  olFeature.set('entityRevision', getEntityRevision(feature));

  return olFeature;
}

valueAccessor: (entity: object, name: string) => {
      return getEntityProperty(entity, name);
    },
    columns: [

olFeature.setId(getId(feature));

  const title = getEntityTitle(feature);
  if (title !== undefined) {
    olFeature.set('_title', title, true);
  }

  if (feature.extent !== undefined) {
    olFeature.set('_extent', feature.extent, true);
  }

  if (feature.projection !== undefined) {
    olFeature.set('_projection', feature.projection, true);
  }

  const mapTitle = getEntityProperty(feature, 'meta.mapTitle');
  if (mapTitle !== undefined) {
    olFeature.set('_mapTitle', mapTitle, true);
  }

  olFeature.set('_entityRevision', getEntityRevision(feature), true);

  const icon = getEntityIcon(feature);
  if (icon !== undefined) {
    olFeature.set('_icon', icon, true);
  }

  if (feature.meta && feature.meta.style) {
    olFeature.set('_style', feature.meta.style, true);
  }

  return olFeature;