export declare function createAggregateGroupTransform(groupKeyArray: string[], valueKey: any, operation: any): Function;
export declare function transformCategorizeNested(dataArray: any): any[];
export declare function createCategorizeNestedTransform(): Function;
export declare function transformConvert(dataArray: any, conversionMap: any): any;
export declare function createConvertTransform(conversionMap: any): Function;
export declare function createFilterTransform(filter: Function): Function;
export declare function createOperationTransform(operation: Function): Function;
export declare function transformOperateEach(dataArray: any, operation: Function): any[];
export declare function createOperateEachTransform(operation: Function): Function;
export declare function createSortTransform(comparator: Function): Function;
export declare function transformSortByAttribute(dataArray: any, attribute: any, config?: any): any;
export declare function createSortByAttributeTransform(attribute: any, config: any, recursiveAttribute?: string): Function;
export declare function transformSortByValue(dataArray: any, valueMap: Function, asc?: boolean): any;
export declare function createSortByValueTransform(valueMap: Function, asc?: boolean): Function;