input: Write a python function to fetch the text content of a given URL using the requests and BeautifulSoup libraries.
  assert fetch_url_text('http://www.example.com') == 'Example Domain\n\nThis domain is for use in illustrative examples in documents. You may use this domain in literature without prior coordination or asking for permission.\n\nMore information...'
  assert fetch_url_text('http://www.test.com') == 'Test Page for Apache Installation'
output: def fetch_url_text(url):
      import requests
      from bs4 import BeautifulSoup
      
      response = requests.get(url)
      soup = BeautifulSoup(response.content, 'html.parser')
      return soup.get_text()