How to use the @azure/core-http.WebResource function in @azure/core-http

private async listResources(
    name: string,
    listRequestOptions: ListRequestOptions | undefined,
    serializer: AtomXmlSerializer
  ): Promise {
    const queryParams: { [key: string]: string } = {};
    if (listRequestOptions) {
      if (listRequestOptions.skip) {
        queryParams["$skip"] = listRequestOptions.skip.toString();
      }
      if (listRequestOptions.top) {
        queryParams["$top"] = listRequestOptions.top.toString();
      }
    }

    const webResource: WebResource = new WebResource(this.getUrl(name, queryParams), "GET");

    return executeAtomXmlOperation(this, webResource, serializer);
  }

private async getResource(
    name: string,
    serializer: AtomXmlSerializer
  ): Promise {
    const webResource: WebResource = new WebResource(this.getUrl(name), "GET");

    const response = await executeAtomXmlOperation(this, webResource, serializer);
    if (
      response.parsedBody == undefined ||
      (Array.isArray(response.parsedBody) && response.parsedBody.length == 0)
    ) {
      const err = new RestError(
        `The messaging entity "${name}" being requested cannot be found.`,
        "404",
        404,
        stripRequest(webResource),
        stripResponse(response)
      );
      throw err;
    }
    return response;

createWebResource(requestOptions: RequestPrepareOptions): WebResource {
    const webResource = new WebResource();
    webResource.prepare(requestOptions);
    return webResource;
  }

private async putResource(
    name: string,
    entityFields:
      | InternalQueueOptions
      | InternalTopicOptions
      | InternalSubscriptionOptions
      | InternalRuleOptions,
    serializer: AtomXmlSerializer,
    isUpdate: boolean = false
  ): Promise {
    const webResource: WebResource = new WebResource(this.getUrl(name), "PUT");
    webResource.body = entityFields;
    if (isUpdate) {
      webResource.headers.set("If-Match", "*");
    }
    webResource.headers.set("content-type", "application/atom+xml;type=entry;charset=utf-8");

    return executeAtomXmlOperation(this, webResource, serializer);
  }