Insert singleton dimensions
     
    
    
    Arguments
- x
- An mlx array. 
- axis
- Integer vector of axis positions (1-indexed) where new singleton
dimensions should be inserted. 
 
    
    Value
    An mlx array with additional dimensions of length one.
     
    
    
    Examples
    x <- as_mlx(matrix(1:4, 2, 2))
mlx_expand_dims(x, axis = 1)
#> mlx array [1 x 2 x 2]
#>   dtype: float32
#>   device: gpu
#>   (4 elements, not shown)