@shipengine/connect-carrier-api/src/models/tracking/update-method.ts

This is the typescript/javascript definitions for carrier api

/** @description Update method to use for the tracking information */
export enum UpdateMethods {
  /** @description Append the new data to the existing data set */
  Append = 'append',
  /** @description Replace the existing data set with the new data */
  Replace = 'replace',
}