1layout (
2    origin_upper_left,
3    push_constant,
4    blend_support_all_equations,
5    srgb_unpremul,
6    location = 1,
7    offset = 1,
8    binding = 1,
9    index = 1,
10    set = 1,
11    builtin = 1,
12    input_attachment_index = 1)
13void on_return() {}
14
15void on_param(
16layout (
17    origin_upper_left,
18    push_constant,
19    blend_support_all_equations,
20    srgb_unpremul,
21    location = 1,
22    offset = 1,
23    binding = 1,
24    index = 1,
25    set = 1,
26    builtin = 1,
27    input_attachment_index = 1) float x) {}
28