Method push

deps/undici/undici.js:842–845

* @param {T} data * @returns {void}

(data)

       * @returns {void}
       */
      push(data) {
        this.list[this.top] = data;
        this.top = this.top + 1 & kMask;
      }
      /** @returns {T|null} */
      shift() {
        const nextItem = this.list[this.bottom];