NativeLsl_pull_chunk_s typedef
        NativeLsl_pull_chunk_s =
     UnsignedLong Function(lsl_inlet in$, Pointer<Int16>  data_buffer, Pointer<Double>  timestamp_buffer, UnsignedLong data_buffer_elements, UnsignedLong timestamp_buffer_elements, Double timeout, Pointer<Int32>  ec)
    
    
    
Implementation
typedef NativeLsl_pull_chunk_s =
    ffi.UnsignedLong Function(
      lsl_inlet in$,
      ffi.Pointer<ffi.Int16> data_buffer,
      ffi.Pointer<ffi.Double> timestamp_buffer,
      ffi.UnsignedLong data_buffer_elements,
      ffi.UnsignedLong timestamp_buffer_elements,
      ffi.Double timeout,
      ffi.Pointer<ffi.Int32> ec,
    );