Function grpcio_sys::grpc_slice_new_with_len

pub unsafe extern "C" fn grpc_slice_new_with_len(
    p: *mut c_void, 
    len: usize, 
    destroy: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: usize)>
) -> grpc_slice

Equivalent to grpc_slice_new, but with a two argument destroy function that also takes the slice length.