declare namespace Ext {
    export namespace grid {
        export namespace property {
            export interface ReaderConfig {
                implicitIncludes?: boolean;
                keepRawData?: boolean;
                listeners?: object;
                messageProperty?: string;
                model?: string | Ext.data.Model;
                readRecordsOnFailure?: boolean;
                rootProperty?: string | CallableFunction;
                successProperty?: string;
                totalProperty?: string;
                transform?: string | object | CallableFunction;
                typeProperty?: string;
            }

            export class Reader extends Ext.data.reader.Reader  {
            }
        }
    }
}