input: from typing import List
  
  
  def generate_top_10_bestselling_books_table(genre: str) -> str:
      """ Generate an HTML table displaying information about the top 10 bestselling books
      in the specified genre from a SQLite database.
      >>> generate_top_10_bestselling_books_table('Fantasy')
      '<table><tr><th>Title</th><th>Author</th><th>Genre</th><th>Sales</th></tr><tr><td>[title1]</td><td>[author1]</td><td>Fantasy</td><td>[sales1]</td></tr><tr><td>[title2]</td><td>[author2]</td><td>Fantasy</td><td>[sales2]</td></tr><tr><td>[title3]</td><td>[author3]</td><td>Fantasy</td><td>[sales3]</td></tr><tr><td>[title4]</td><td>[author4]</td><td>Fantasy</td><td>[sales4]</td></tr><tr><td>[title5]</td><td>[author5]</td><td>Fantasy</td><td>[sales5]</td></tr><tr><td>[title6]</td><td>[author6]</td><td>Fantasy</td><td>[sales6]</td></tr><tr><td>[title7]</td><td>[author7]</td><td>Fantasy</td><td>[sales7]</td></tr><tr><td>[title8]</td><td>[author8]</td><td>Fantasy</td><td>[sales8]</td></tr><tr><td>[title9]</td><td>[author9]</td><td>Fantasy</td><td>[sales9]</td></tr><tr><td>[title10]</td><td>[author10]</td><td>Fantasy</td><td>[sales10]</td></tr></table>'
      """
output:     import sqlite3
      conn = sqlite3.connect('books.db')
      cursor = conn.cursor()
  
      cursor.execute("""
          SELECT title, author, genre, sales
          FROM books
          WHERE genre = ?
          ORDER BY sales DESC
          LIMIT 10
      """, (genre,))
  
      rows = cursor.fetchall()
      conn.close()
  
      table = '<table><tr><th>Title</th><th>Author</th><th>Genre</th><th>Sales</th></tr>'
      for row in rows:
          table += f'<tr><td>{row[0]}</td><td>{row[1]}</td><td>{row[2]}</td><td>{row[3]}</td></tr>'
      table += '</table>'
  
      return table