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import { qs } from "../../deps.ts";import { parseUrl } from "../utils/parseUrl.ts";import { merge } from "../utils/merge.ts";import type { NextFunction, OpineRequest, OpineResponse } from "../types.ts";
/** * Exposes a query object containing the querystring * parameters of the request url. * * @return {Function} query middleware * @public */export const query = function (options: any) {  let opts = merge({}, options);  let queryParse = qs.parse;
  if (typeof options === "function") {    queryParse = options;    opts = undefined;  }
  if (opts !== undefined && opts.allowPrototypes === undefined) {    // back-compat for qs module    opts.allowPrototypes = true;  }
  return function opineQuery(    req: OpineRequest,    _res: OpineResponse,    next: NextFunction,  ) {    if (!req.query) {      const value = parseUrl(req)?.query as string;      req.query = queryParse(value, opts);    }
    next();  };};