lib.getValue

The following is the current implementation of this function.

getValue =
    attrSet: argList: name:
    (attrByPath [ name ] (
      if checkFlag attrSet name then
        true
      else if argList == [ ] then
        null
      else
        let
          x = builtins.head argList;
        in
        if (head x) == name then (head (tail x)) else (getValue attrSet (tail argList) name)
    ) attrSet);