input: from typing import List
  
  def retrieve_product_data(search_keyword: str, website_url: str) -> List[str]:
      """ Create a webscraper using Python's Selenium that retrieves data from an online store.
      The function should open a Firefox browser, navigate to the specified URL, search for the 
      given keyword, and return a list of product names found on the result page.
      >>> retrieve_product_data("shoes", "https://www.example.com/")
      ['Running Shoes', 'Casual Shoes', 'Boots']
      """
output:     from selenium import webdriver
      from selenium.webdriver.common.by import By
      from selenium.webdriver.common.keys import Keys
      import time
  
      # Initialize the Firefox browser
      driver = webdriver.Firefox()
      driver.get(website_url)
  
      # Find the search box and enter the search keyword
      search_box = driver.find_element(By.NAME, "q")
      search_box.send_keys(search_keyword)
      search_box.send_keys(Keys.RETURN)
  
      # Wait for the page to load
      time.sleep(2)
  
      # Retrieve the product names from the result page
      product_names = driver.find_elements(By.CLASS_NAME, "product-name")
      product_list = [product.text for product in product_names]
  
      # Close the browser
      driver.quit()
  
      return product_list