Those who have installed mods for GTA 5 may have used a tool named Script Hook V for the same at some point.

This article briefly explains how you can downgrade GTA 5 on PC when the Script Hook V issue occurs. Note: This is a temporary fix and may not work with all versions of the game. The author takes ...

Script Hook V Script Hook V is the main program you'll be using to run Grand Theft Auto 5 mods. It lets you install and run .ASI mods — the most common type — and also includes a sample mod ...

You can see it in action with the video below from YouTube outlet GTA Series Videos. The grappling hook was scripted by JulioNIB and is used in conjunction with the Script Hook V .asi loader.