type number =
| F32
| F64
| C32
| C64
type ('a, 'b) owl_arr =
('a, 'b, Stdlib.Bigarray.c_layout) Stdlib.Bigarray.Genarray.t
type index =
| I of int
| L of int list
| R of int list
type index_ =
| I_ of int
| L_ of int array
| R_ of int array
type padding =
| SAME
| VALID
type device_type =
| CPU
| OpenCL
| CUDA