Serialize content to WebGPU.
```
struct Uniform {
a: f16,
b: mat4x4
let uniform = Uniform { a: f16::from_f32(123.456), b: [ vec4(1.0, 2.0, 3.0, 4.0), vec4(4.0, 5.0, 7.0, 8.0), vec4(1.0, 2.0, 3.0, 4.0), vec4(5.0, 6.0, 7.0, 8.0), ], };
serializewebgpubuffer(&uniform).unwrap(); ```