I declare under the penalties of law, that I am the person making the within claim; that said account is just and true; that the money therein charged was actually paid for the purposes therein stated; that the property therein charged for was actually delivered or used for the purposes therein stated, and was of the value therein charged; that the services therein charged were actually rendered, and of value therein charged and the fees or amounts charged therefore are such and are allowed by law, and no part of said account has been paid.