Resolving nested variable names

[puria]

In zenroom I'm limited to resolve something named in the root of the object and then, extract, extract and dig for the stuff we need.
For slangroom i suggest to have also nested resolve, like a lodash _.get().
e.g

Given I pass some_var 'obj.a[0].var' ...

DATA or KEYS

{
  "obj": {
    "a": [
      {"var": "fooooopete" },
      {"var": "booope" },
    ]
  }
}

This should pass fooooopete to the sentence