@jaricardodev/ews-javascript-api/src/js/Enumerations/PreviewItemBaseShape.ts

EWS Managed api in JavaScript

/**
 * Preview item base shape
 */
export enum PreviewItemBaseShape {
    
    /**
     * Default (all properties required for showing preview by default)
     */
    Default = 0,
    
    /**
     * Compact (only a set of core properties)
     */
    Compact = 1
}