Method setBoth

src/service/variable-source.js:253–255

* Helper method to set both sync and async resolvers. * @param {string} varName * @param {!SyncResolverDef} syncResolver * @param {!AsyncResolverDef} asyncResolver * @return {!VariableSource}

(varName, syncResolver, asyncResolver)

   * @return {!VariableSource}
   */
  setBoth(varName, syncResolver, asyncResolver) {
    return this.set(varName, syncResolver).setAsync(varName, asyncResolver);
  }

  /**
   * Returns a Regular expression that can be used to detect all the variables