NativeLsl_push_chunk_d typedef
        NativeLsl_push_chunk_d =
     Int32 Function(lsl_outlet out, Pointer<Double>  data, UnsignedLong data_elements)
    
    
    
Implementation
typedef NativeLsl_push_chunk_d =
    ffi.Int32 Function(
      lsl_outlet out,
      ffi.Pointer<ffi.Double> data,
      ffi.UnsignedLong data_elements,
    );