Wyo. Stat. § 1-10-102
If, in an action on a contract for the payment of anything other than money or for the performance of labor, the defendant answers that he did tender payment or performance of the contract at such time and place, and in such things or labor as by the contract he was bound to pay or perform, and the court or jury finds that he did tender as alleged in his pleading, they shall assess the value of the property or labor so tendered, and judgment shall be rendered in favor of the plaintiff for the value found, without interest or costs. If the defendant forthwith performs his contract, or gives to the plaintiff such assurance as the court approves that he will perform within such time as the court directs, judgment shall be rendered for the defendant. If any article so tendered is perishable it shall, from the time of tender, be kept at the risk and expense of the plaintiff, provided the defendant takes reasonable care of the same.
W.S. 1-10-102