Function writeback_impulse_joint_impulses 

pub fn writeback_impulse_joint_impulses(
    context: Query<'_, '_, &RapierContextJoints>,
    impulse_joints: Query<'_, '_, (&RapierContextEntityLink, &RapierImpulseJointHandle, &mut ImpulseJointImpulses)>,
)

System responsible for writing the impulses applied by impulse joints back into the ImpulseJointImpulses component.