pub fn unreachableFileMemoryMapSetLength(userdata: ?*anyopaque, mm: *File.MemoryMap, new_len: usize) File.MemoryMap.SetLengthError!void
pub fn unreachableFileMemoryMapSetLength(userdata: ?*anyopaque, mm: *File.MemoryMap, new_len: usize) File.MemoryMap.SetLengthError!void { _ = userdata; _ = mm; _ = new_len; unreachable; }