Using #defines for Teensy 4.0 and Micromod Teensy

I am trying to set a port up for the Teensy 4.0 board.

Using Arduino I can write:

IOMUXC_SW_MUX_CTL_PAD_GPIO_B0_00 = 5; // pin 10 on pad B0_00

In PlatformIO

IOMUXC_SW_MUX_CTL_PAD_GPIO_B0_00 = 5; // pin 10 on pad B0_00

gives the error:
#define IOMUXC_SW_MUX_CTL_PAD_GPIO_B0_00 (IMXRT_IOMUXC.offset13C)

Expands to:

(IMXRT_IOMUXC.offset13C)

expected a ')'C/C++(18)

What am I doing wrong?

Does the project still compile?

Thanks, it does all work as it should It was me being stupid!

But the intellisense is still complaining about it being wrong?