input: Write a python function to extract and print text from a webpage given its URL and a CSS selector.
  assert extract_and_print_text('URL', 'SELECTOR') is None
  assert extract_and_print_text('https://example.com', '.example-class') is None
output: def extract_and_print_text(url, selector):
      import requests
      from bs4 import BeautifulSoup
  
      response = requests.get(url)
      soup = BeautifulSoup(response.content, 'html.parser')
      elements = soup.select(selector)
  
      for element in elements:
          print(element.get_text())