import type { DeepReadonly, DeepReadonlyPartial } from '../../types/deep.js';
import type { Nullable } from '../../types/misc.js';
import type { BasePair, IObjectOps, NumKey } from './types.js';
export declare function _getValue<T extends object, TKey extends NumKey<T> = NumKey<T>>(o: Nullable<DeepReadonlyPartial<T>>, key: TKey): T[TKey] | undefined;
export declare function _getInnerValue<T extends object, TKey extends string & keyof T>(o: Nullable<DeepReadonly<T>>, key: TKey): DeepReadonly<T[TKey]>;
export declare function _getInnerValue<T extends object, TKey extends string & keyof T>(o: Nullable<DeepReadonly<T> | number>, key: TKey): DeepReadonly<T[TKey]> | number;
/** this helpers hides some cumbersome type transformations */
export declare function doOps<T extends object, TOps extends IObjectOps<any>>(this: void, ops: BasePair<T, string & keyof T, TOps>[], o: Nullable<DeepReadonly<T>>, processor?: (ops: TOps, value: DeepReadonly<T[string & keyof T]>, key: string & keyof T) => T[keyof T] | null): T;