func noop(__ = null, ___ = null):
  pass

func identity(x, __ = null):
  return x

func default_now() -> float:
  return Time.get_unix_time_from_datetime_dict(
    Time.get_datetime_dict_from_system(true))

func default_comparer(x, y) -> bool:
  return x.eq(y) if (x is Object and x.has_method("eq")) else x == y

func default_sub_comparer(x, y):
  return x - y

func default_key_serializer(x) -> String:
  return str(x)

func default_error(err):
  if err is ThrowableBase:
    err.throw()
  GDRx.raise(RxBaseError.new(err))

func default_crash(e):
  #OS.alert("Unhandled error: " + str(e))
  push_error("Unhandled error: " + str(e))
  print_stack()
  GDRx.get_tree().quit(1)

func default_condition(__ = null, ___ = null) -> bool:
  return true

func default_factory(__ : SchedulerBase): # -> Observable:
  return GDRx.obs.empty()

func default_type_equality(type, value) -> bool:
  if type is Dictionary:
    return typeof(value) == TYPE_INT and type.find_key(value) != null
  return is_instance_of(value, type)