How to launch a Gazebo node with a namespace in ROS2?

Question

I want to launch in a python launch file a gazebo node with a namespace.

Something like: <namespace>/gazebo

With the namespace matching my other nodes.

I want all of the nodes I'm launching with the same unique namespace so that others on the same network as me can know which nodes are from whom.

For now, I am launching gazebo with an execute process in my launch file:

ld.add_action(
        ExecuteProcess(
            cmd=["gazebo", "--verbose", "-s", "libgazebo_ros_factory.so", "src/robokicks_simulation/worlds/empty.world"],
            output="screen",
    )
)

And the 'ros2 node list' returns

/gazebo
/<namespace>/joint_state_publisher
/<namespace>/robot_state_publisher