The Tell Dont Ask Principle

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if steeringWheel < 0 {
    turnLeft()
} else if steeringWheel > 0 {
    turnRight()
}

func turnLeft() {
    ...
}

func turnRight() {
    ...
}

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type car struct {
    ...
}

func (c car) turn() string {
    ...
}

car_1.turn()