input: Write a function to extract text from HTML using BeautifulSoup.
  assert get_text_from_html('<html><body><p>Hello, World!</p></body></html>') == 'Hello, World!'
  assert get_text_from_html('<div><h1>Title</h1><p>This is a paragraph.</p></div>') == 'Title This is a paragraph.'
  assert get_text_from_html('<html><body><p>First</p><p>Second</p></body></html>') == 'First Second'
output: def get_text_from_html(html_content):
      from bs4 import BeautifulSoup
      soup = BeautifulSoup(html_content, 'html.parser')
      return ' '.join(soup.stripped_strings)