Making use of an argument decorator.

[sudojunior]

It would be interesting to see how an argument descriptor could be added to the project as a minor change.
Although, the signature may need to be changed to include the physical variable description, if a variable name cannot be determined in runtime.

This issue is intended for a first time contributor.

Example

// when making use of a decorator preprocessor or typescript
function add(
  @validate.arg(["number"]) a,
  @validate.arg(["number"]) b
) {
  return a + b;
}