Function sort 

pub fn sort<T, D>(
    a: &Array<T, D>,
    axis: Option<usize>,
    kind: SortKind,
) -> FerrayResult<Array<T, IxDyn>>
where
    T: Element + PartialOrd + Copy + Send + Sync,
    D: Dimension,

Sort an array along the given axis (or flattened if axis is None).

When axis is None, the array is flattened before sorting and a 1-D array is returned (matching NumPy behaviour). When an axis is given, the returned array has the same shape as the input.

Equivalent to numpy.sort.