Function laminar_stream_next 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn laminar_stream_next(
    stream: *mut LaminarQueryStream,
    out: *mut *mut LaminarRecordBatch,
) -> i32

Get the next batch from a query stream (blocking). Sets *out to NULL when exhausted.

Safety

stream and out must be valid non-null pointers.