py bindings -- chunk_multi improvement
py bindings -- chunk_multi improvement


Former-commit-id: fbcb6582b7cd653edd9aba9e89efaca7f5d3a5f1
Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide