XsDoesUnitExist

Check unit exist from native game state.

XsDoesUnitExist(unitId)

Inputs: unitId is an integer unit ID.

Output: value, available: boolean when available is true; nil, false when unavailable.

Errors and unavailable states: Wrong numeric argument types raise a Lua argument error. Invalid IDs or an unavailable native query return nil, false; use the availability flag before reading the value.

See Low-level queries for related calls and usage notes.