Then you have to use input_slider or update to 0.55.0 where the component has been renamed to input_number.
From the Breaking Changes for 0.55.0:
Renamed input_slider to input_number which has now a numeric text box option. (@BioSehnsucht - #9494) (demo docs) (input_number docs) (breaking change)
Ah, yeah it’s rare that a component is renamed, so there’s not any kind of standardized notation to tell you that it was formerly called something else. The original input_slider has been around since 0.16, and it’s basically the same thing with a new name and added options… perhaps the docs should have clarified that.