Potion for Keep inventory while dying

There should be a potion that lasts for maybe 1 minute or 30 seconds. Let's say we're going into a fight and realize we're going to die — then we can drink that potion before dying, and we'll be able to keep our inventory. This potion doesn’t have to be easy to make. It can be crafted only with some rare or non-craftable items. This potion would help a lot of players who have lost their diamond gear or are exploring far from home. Right now, if they die, they lose all the valuable and important items they collected. So, I think this is a very necessary potion in Minecraft.