The township board of any such township may enter into contracts with cities and other townships for cooperation between the fire departments of the respective townships and cities, and may include in such contracts provisions by which the fire department of such cities or other townships will furnish fire protection to a part of the township in question in consideration of cash payments or reciprocal services: Provided, That the township shall not be liable in any way for the failure of the township fire department to attend a fire or to put out a fire or for any other reason, but the township fire department, subject to the conditions of this act, shall make a reasonable effort (road and weather conditions permitting) to attend outside fires: Provided, The supervision and control of the township fire department shall always be with the governing body of the township operating and maintaining such fire department: And provided further, That the fire chief or person in charge of the township fire department shall have the right in every case where a contract exists for reciprocal service, to determine whether or not the township can spare all or any portion of its fire equipment and firemen at that particular time.