struct A:
    var data: SIMD[DType.float32, 4]

    fn __init__(inout self: A, x: SIMD[DType.float32, 1]) -> None:
        self.data = SIMD[DType.float32, 1](x)
    
    
    
let a = A(10)
print(a.data)

[10.0, 10.0, 10.0, 10.0]