How to enable the native emit?

[wsysx123]

I'm using the stm32f407-atk-explorer bsp, and I can run the normal micropython file on it .

but when I try to run a function with @micropython.native ,It can't run and say:

msh />python fortest_native.py
Traceback (most recent call last):
  File "fortest_native.py", line 11, in <module>
SyntaxError: invalid micropython decorator

I want to know if the micropython in RT-Thread has enable the native methed, If not, How to enable it ? Thank you!~