import { GridColumnTypesRecord } from '../models/colDef/gridColTypeDef'; export declare function mergeGridColTypes(defaultColumnTypes: GridColumnTypesRecord, optionsColTypes: GridColumnTypesRecord): GridColumnTypesRecord; export declare function removeUndefinedProps(options: Object): { constructor: Function; toString(): string; toLocaleString(): string; valueOf(): Object; hasOwnProperty(v: PropertyKey): boolean; isPrototypeOf(v: Object): boolean; propertyIsEnumerable(v: PropertyKey): boolean; }; export declare function mergeGridOptions(defaultOptions: any, options?: any): any;