declare namespace Ext {
    export namespace mixin {
        export interface DirtyConfig {
            dirty?: boolean;
            ignoreDirty?: boolean;
            recordStateIsDirtyState?: boolean;
        }

        export class Dirty extends Ext.Base  {
            public clearRecordStates(): void;
            public getDirty(): void;
            public isDirty(): void;
            public setDirty(): void;
            public trackRecordState(record?: Ext.data.Model, initial?: boolean): boolean;
            public untrackRecordState(record?: Ext.data.Model): boolean;
        }
    }
}