I try to execute the Maixpy example: "Button" in https://github.com/m5stack/m5-docs/blob/master/docs/en/related_documents/M5StickV-Maixpy.md
unsing MaixPy IDE, and I have the error (line 12):
AttibutError: 'Board_info' object has no attribut 'BUTTON_A'

Note:

• I burnt my M5StickV before with the latest maixpy firmware (maixpy_v0.5.1_103_gf9bb0bb.bin)
• My MaixPy IDE (v0.2.5) is configured for using my M5StickV board (tools>Select Board>M5StickV)

Is there something to configure for using the "Board_info" lib with the M5StickV configuration ?