old_contents: module.exports = {
    safe: function safe(thing, path, otherwise) {
      thing = (thing instanceof Object) ? thing : {};
      var props = path.split('.');
      if (props.length === 1) {
        return thing[props.shift()] || otherwise;
      } else {
        var prop = props.shift();
        return (thing[prop] instanceof Object) ? safe(thing[prop], props.join('.'), otherwise) : otherwise || undefined;
      }
    },
  
    expand: function expand(obj, path, thing) {
      obj = (obj instanceof Object) ? obj : {};
      var props = path.split('.');
      if (props.length === 1) {
        obj[props.shift()] = thing;
      } else {
        var prop = props.shift();
        if (!obj[prop]) {
          obj[prop] = {};
        }
        expand(obj[prop], props.join('.'), thing);
      }
    }
  };
  
new_contents: module.exports = {
    safe: function (thing, path, otherwise) {
      thing = (thing instanceof Object) ? thing : {};
      var props = path.split('.');
      if (props.length === 1) {
        return thing[props.shift()] || otherwise;
      } else {
        var prop = props.shift();
        return (thing[prop] instanceof Object) ? this.safe(thing[prop], props.join('.'), otherwise) : otherwise || undefined;
      }
    },
  
    expand: function (obj, path, thing) {
      obj = (obj instanceof Object) ? obj : {};
      var props = path.split('.');
      if (props.length === 1) {
        obj[props.shift()] = thing;
      } else {
        var prop = props.shift();
        if (!obj[prop]) {
          obj[prop] = {};
        }
        this.expand(obj[prop], props.join('.'), thing);
      }
    }
  };
  
subject: Remove function names