How to access function documentation in a script

General Usage
5

Unfortunately, this doesn’t work for my example above. See the output below:

#...
using .Test

function getDocString(g::Symbol)
    # return Docs.doc(Docs.Binding(Test, g))  # Also doesn't work
    return Docs.doc(Docs.Binding(Main, g))
end

println(getDocString(:g))

Using this in the example script above, I get the error:

No documentation found.

Binding `g` does not exist.