DartLsl_push_chunk_str typedef
        DartLsl_push_chunk_str =
     int Function(lsl_outlet out, Pointer<Pointer<Char> >  data, int data_elements)
    
    
    
Implementation
typedef DartLsl_push_chunk_str =
    int Function(
      lsl_outlet out,
      ffi.Pointer<ffi.Pointer<ffi.Char>> data,
      int data_elements,
    );