Perhaps if people have not used JS and TS, they would think that typings are in their brain memory but typings are a lot more than scalar and return value typin

Perhaps if people have not used JS and TS, they would think that typings are in their brain memory but typings are a lot more than scalar and return value typings like defining a structure of a hash and apply that dynamically depending on parameter value or give string an enum like behavior limiting what could be assigned.