"Agent." Any director, officer, servant, employe or other person authorized to act in behalf of the corporation or association and, in the case of an unincorporated association, a member of such association.
"Corporation." Does not include an entity organized as or by a governmental agency for the execution of a governmental program.
"High managerial agent." An officer of a corporation or an unincorporated association, or, in the case of a partnership, a partner, or any other agent of a corporation or association having duties of such responsibility that his conduct may fairly be assumed to represent the policy of the corporation or association.
18 Pa.C.S. § 307