declare namespace Ext {
    export namespace data {
        export namespace field {
            export interface IntegerConfig {
                allowNull?: boolean;
                calculate?: CallableFunction;
                convert?: CallableFunction;
                critical?: boolean;
                defaultValue?: object;
                depends?: string | string[];
                mapping?: string | number | CallableFunction;
                name?: string;
                persist?: boolean;
                reference?: string | object;
                serialize?: CallableFunction;
                sortType?: string | CallableFunction;
                unique?: boolean;
                validators?: object[];
            }

            export class Integer extends Ext.data.field.Field  {
            }
        }
    }
}