declare namespace Ext {
    export namespace data {
        export namespace operation {
            export interface UpdateConfig {
                batch?: Ext.data.Batch;
                callback?: CallableFunction;
                id?: object;
                params?: object;
                proxy?: Ext.data.proxy.Proxy;
                records?: Ext.data.Model[];
                request?: Ext.data.Request;
                resultSet?: Ext.data.ResultSet;
                scope?: object;
                synchronous?: boolean;
                url?: string;
            }

            export class Update extends Ext.data.operation.Operation  {
            }
        }
    }
}