SceneTreeTimer
One-shot timer.
Description
A one-shot timer managed by the scene tree, which emits timeout on completion. See also SceneTree.create_timer.
As opposed to Timer, it does not require the instantiation of a node. Commonly used to create a one-shot delay timer as in the following example:
func some_function():
    print("Timer started.")
    yield(get_tree().create_timer(1.0), "timeout")
    print("Timer ended.")
   Properties
| float | time_left | 
Signals
timeout ( )
Emitted when the timer reaches 0.
Property Descriptions
float time_left
| Setter | set_time_left(value) | 
| Getter | get_time_left() | 
The time remaining.
    © 2014–2020 Juan Linietsky, Ariel Manzur, Godot Engine contributors
Licensed under the MIT License.
    https://docs.godotengine.org/en/3.2/classes/class_scenetreetimer.html