import { Schema } from 'mongoose';
import { IKeywordOptions } from '../interfaces';
/**
 * Validate the provided options by checking if specified paths and virtuals exist. Handle default omitted words
 * @param schema the source schema
 * @param options the provided options
 * @returns a validated set of `IKeywordOptions`
 */
export declare const validateOptions: (schema: Schema, options: IKeywordOptions) => IKeywordOptions;