pub fn failingNetInterfaceNameResolve(userdata: ?*anyopaque, name: *const net.Interface.Name) net.Interface.Name.ResolveError!net.Interface
pub fn failingNetInterfaceNameResolve(userdata: ?*anyopaque, name: *const net.Interface.Name) net.Interface.Name.ResolveError!net.Interface { _ = userdata; _ = name; return error.InterfaceNotFound; }