'Using mat4x4<f32> as uniform in WGSL

Is it possible to use a mat4x4<f32> as a uniform data type in WGSL?

I get the following error when doing so:

Shader validation error: 
   ┌─ Shader:18:4
   │
18 │ var<uniform> model: mat4x4<f32>;
   │    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ naga::GlobalVariable [1]


    Global variable [1] 'model' is invalid
    Type isn't compatible with the storage class

Wrapping in a struct is fine and achieves what I need, but seems superfluous. Can the matrix type be used directly?

wgpu-rswgsl


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