code: function each_pair_in_object_expression(ast, func) {
    if (! (ast && ast["type"] == "ObjectExpression")) {
      return;
    }
  
    return _.each(ast["properties"], function(p) {
      isFn(key_value(p["key"]), p["value"], p);
    });
  }
docs: Iterates over keys and values in ObjectExpression.  The keys are turned into strings, but values are left as is for further processing.