input: 
  def scrape_planets_info(url: str) -> List[Dict[str, str]]:
      """
      Scrape the table at the provided URL and extract the planets' information.
      Specifically, the information includes the planet's name, mass, and distance from the sun.
      
      >>> scrape_planets_info('https://en.wikipedia.org/wiki/List_of_gravitationally_rounded_objects_of_the_Solar_System')
      [
          {'name': 'Mercury', 'mass': '0.0553', 'distance_from_sun': '0.39 AU'},
          {'name': 'Venus', 'mass': '0.815', 'distance_from_sun': '0.723 AU'},
          {'name': 'Earth', 'mass': '1', 'distance_from_sun': '1 AU'},
          {'name': 'Mars', 'mass': '0.107', 'distance_from_sun': '1.524 AU'},
          ...
      ]
      """
  
output:     
      import requests
      from bs4 import BeautifulSoup
  
      response = requests.get(url)
      soup = BeautifulSoup(response.content, 'html.parser')
      table = soup.find('table', {'class': 'wikitable'})
      
      planets_info = []
      rows = table.find_all('tr')
      
      for row in rows[1:]:
          cols = row.find_all('td')
          if len(cols) >= 4:
              name = cols[0].get_text(strip=True)
              mass = cols[1].get_text(strip=True)
              distance_from_sun = cols[2].get_text(strip=True)
              planets_info.append({'name': name, 'mass': mass, 'distance_from_sun': distance_from_sun})
      
      return planets_info
  