If I want to provide the "out" kwarg to, for example, a reduce ufunc then I
need to know the shape of the output given the other set of inputs. Is
there a utility function to take these arguments and just compute what the
shape of the output is going to be without actually computing the result?
Would be nice if there were a standard kwarg for many functions that just
tells you the shape of the output without actually computing it but I don't
think that exists. Any ideas appreciated. Thanks.