Affidavit.

Iowa Code § 678.2, under SUBMITTING CONTROVERSIES WITHOUT ACTION OR IN ACTION.

Iowa Code § 678.2

It must be shown by affidavit that the controversy is real, and that the proceeding is in good faith to determine the rights of the parties thereto. [C51, §1844; R60, §3409; C73, §3409; C97, §4378; C24, 27, 31, 35, 39, § 12687; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §678.2 ]