export type PrimType = 'marks' | 'guides' | 'scales' | 'datasets' | 'interactions' | 'widgets' ; export namespace PrimType { export const MARKS = 'marks' ; export const GUIDES = 'guides' ; export const SCALES = 'scales' ; export const DATASETS = 'datasets' ; export const INTERACTIONS = 'interactions' ; export const WIDGETS = 'widgets' ; }