Sec. 2. As used in this chapter, "governmental body" means any of the following:
(1) A state agency (as defined in IC 4-13-1-1).
(2) The legislative department of state government.
(3) The judicial department of state government.
(4) A political subdivision (as defined in IC 36-1-2-13).
(5) A state educational institution.
(6) An instrumentality of the state that performs essential governmental functions.
(7) The state lottery commission created by IC 4-30-3-1.