Cannot spawn iris_fpv_cam

Hello, I attempted to spawn multiple vehicles using “./sitl_multiple_run.sh -s “iris:1,iris_fpv_cam:1” -w empty” to integrate with ROS 2 foxy in ubuntu 20.04. However, I was unable to spawn iris_fpv_cam because this command supports only a limited number of vehicle types. Since I need to use a camera for image processing with ROS 2, I specifically require iris_fpv_cam to be spawned. Are there any alternative methods to spawn iris_fpv_cam in gazebo-classic? I am relatively new to this area and would appreciate any guidance on this matter.