getDirectionTo can return undefined but typings only have DirectionConstant as a return value.

[Sca1ey]

Expected Behavior

The return type of getDirection to should be DirectionConstant | undefined

Actual Behavior

The return type on getDirection to is DirectionConstant

Sample code (if available)

const roomPos = new RoomPosition(25, 25, 'E7N51')
console.log(roomPos.getDirectionTo(roomPos)) //undefined

Your Environment

• Node.js version: 21.5.0
• TypeScript version: 4.3.5
• @types/screeps version: jomik/typed-screeps#flexible-memory