'__WFI' was not declared in this scope, HELP😘

Development Platforms
1

Using: framework-arduinopico
Using: rp2040 and rp2350 baords

Just updated platformio packages, now i face:

 '__WFI' was not declared in this scope

Which file shall i include o what shall i do to access __WFI();//Wait For Interrupt

Best regards.

2

oops, i found out now it’s lower case, srry