message: feat(core): add data prop
diff: @@ -45,6 +45,11 @@ export class Parser {
  */
  atoms: Atom[] = []
  + /**
  + * For extensibility
  + */
  + data: Record<string, any> = {}
  +
  get uniqueClassName() {
  return objectToClassName(Object.keys(this.props))
  }
  