declare namespace Ext {
    export interface AjaxConfig {
        async?: boolean;
        binary?: boolean;
        cors?: boolean;
        defaultPostHeader?: string;
        defaultXhrHeader?: string;
        disableCachingParam?: string;
        listeners?: object;
        password?: string;
        url?: string;
        useDefaultXhrHeader?: boolean;
        username?: string;
        withCredentials?: boolean;
    }

    export class Ajax extends Ext.data.Connection  {
        public autoAbort?: boolean;
        public defaultHeaders?: object;
        public disableCaching?: boolean;
        public extraParams?: object;
        public method?: string;
        public timeout?: number;
        public url?: string;
    }
}