input: Write a python function to scrape all links from a given webpage and return them as a list of tuples containing the link text and the URL.
  assert scrape_links("https://www.example.com/") == [("Example Domain", "https://www.iana.org/domains/example")]
  assert scrape_links("https://www.python.org/") != []
  assert len(scrape_links("https://www.wikipedia.org/")) > 0
output: def scrape_links(url):
      import requests
      from bs4 import BeautifulSoup
  
      response = requests.get(url)
      soup = BeautifulSoup(response.content, 'html.parser')
  
      links = []
      for a_tag in soup.find_all('a', href=True):
          link_text = a_tag.get_text(strip=True)
          link_url = a_tag['href']
          links.append((link_text, link_url))
  
      return links