lib/collection/variable-list.js
function (obj) {
        return Boolean(obj) && ((obj instanceof VariableList) ||
            _.inSuperChain(obj.constructor, '_postman_propertyName', VariableList._postman_propertyName));
    }
function (obj) {
        return Boolean(obj) && ((obj instanceof VariableList) ||
            _.inSuperChain(obj.constructor, '_postman_propertyName', VariableList._postman_propertyName));
    }
function ( obj ) { return Boolean ( obj ) && ( ( obj instanceof VariableList ) || _ . inSuperChain ( obj . constructor , '_postman_propertyName' , VariableList . _postman_propertyName ) ) ; }
Checks whether an object is a VariableList

@param {*} obj
@returns {Boolean}
Checks whether an object is a VariableList