pub unsafe extern "C" fn THFloatTensor_prod(
r_: *mut THFloatTensor,
t: *mut THFloatTensor,
dimension: c_int,
keepdim: c_int,
)pub unsafe extern "C" fn THFloatTensor_prod(
r_: *mut THFloatTensor,
t: *mut THFloatTensor,
dimension: c_int,
keepdim: c_int,
)