I need to impl a private module so I can have a private get_paths

src/main.rs

@@ -25,6 +25,7 @@ use crate::compu_buffer::CompuBuffers;
 use crate::util::load_raw;
 use crate::canvas_frame::CanvasFrame;
 use crate::sprite::Poly;
+use vulkano::instance::debug::DebugCallback;
 
 
 pub mod util;
@@ -58,6 +59,10 @@ pub fn main() {
         Instance::new(None, &extensions, None).unwrap()
     };
 
+    let _callback = DebugCallback::errors_and_warnings(&instance, |msg| {
+        println!("Debug callback: {:?}", msg.description);
+    }).ok();
+
     let mut events_loop = EventsLoop::new();
     let mut surface = WindowBuilder::new()
         .with_dimensions(LogicalSize::from((800, 800)))
@@ -106,7 +111,6 @@ pub fn main() {
 
     let test_polygon = Poly::new_with_color((-0.5, -0.5), (0.5, 0.5), 1, (1.0,0.0,0.0,0.0));
 
-
     drop(q2);
     drop(q1);
 
@@ -186,6 +190,8 @@ pub fn main() {
 
     drop(l);
 
+
+
     hprof::end_frame();
     hprof::profiler().print_timing();
 }