add multithreading support via Threads.@spawn?

hi
i was wondering whether there is any scope to add multithreading support to this library. i read this https://julialang.org/blog/2019/07/multithreading/ and i was hoping one could think about the interpolation loop here in the same way as in their `psort!` example? like thread number 1 interpolates the first half of points, thread 2 the second half?