Method assertArray

src/utils/log.js:470–476

* Throws an error if the first argument is not an array. * The array can be empty. * * @param {*} shouldBeArray * @param {!Array|string=} opt_message The assertion message * @return {!Array} The array value * @closurePrimitive {asserts.matchesReturn}

(shouldBeArray, opt_message)

   * @closurePrimitive {asserts.matchesReturn}
   */
  assertArray(shouldBeArray, opt_message) {
    return assertions.assertArray(
      this.boundAssertFn_,
      shouldBeArray,
      opt_message
    );
  }

  /**
   * Throws an error if the first argument isn't a boolean.