@shipengine/connect-carrier-api/src/models/dangerous-good/packaging-group-types.ts

This is the typescript/javascript definitions for carrier api

/** @description Types of packaging group for dangerous good and it indicates the degree of danger */
export enum PackagingGroupTypes {
  /** @description level 1 */
  i = 'i',
  /** @description level 2 */
  ii = 'ii',
  /** @description level 3 */
  iii = 'iii',
}