BridgeCallC typedef
        BridgeCallC =
     Pointer<BytesReturn>  Function(Pointer<Utf8>  name, Pointer<Void>  payload, Int32 payloadSize)
    
    
    
Implementation
typedef BridgeCallC = Pointer<BytesReturn> Function(
  Pointer<Utf8> name,
  Pointer<Void> payload,
  Int32 payloadSize,
);