Method getOptionValueSource

lib/command.js:962–964

* Get source of option value. * Expected values are default | config | env | cli | implied * * @param {string} key * @return {string}

(key)

   */

  getOptionValueSource(key) {
    return this._optionValueSources[key];
  }

  /**
   * Get source of option value. See also .optsWithGlobals().