Variable CorporationRoleHistorySchema`Const`

CorporationRoleHistorySchema: ZodObject<
    {
        character_id: ZodNumber;
        changed_at: ZodString;
        issuer_id: ZodNumber;
        role_type: ZodString;
        old_roles: ZodArray<ZodString>;
        new_roles: ZodArray<ZodString>;
    },
    $loose,
> = ...

One role change, from GET /corporations/{corporation_id}/roles/history: the member's full role set of role_type before and after the change.