What units are parameters for moveToPoint and moveToPos in lemlib

// move the robot to x = 20, y = 15 with a timeout of 4000ms
chassis.moveToPoint(20, 15, 4000);

what units are the x and y in. I’m only using inertial sensor.

Inches. 20characters.

when i run my code it does not move in inches, so is it something wrong with my code?

How do you know? What is your code? How is it setup?