# Progress Quick API reference

```lua
progress:empty()
progress:fill()
progress:get()
progress:init(node, key, [init_value])
progress:on_layout_change()
progress:on_remove()
progress:on_style_change(style)
progress:set_max_size(max_size)
progress:set_steps(steps, callback)
progress:set_to(to)
progress:to(to, [callback])
progress:update(dt)
```