input: from typing import List
  
  def generate_html_table_for_top_bestsellers(genre: str, db_path: str) -> str:
      """ Generates an HTML table displaying information about the top 10 bestselling books in a specific genre.
      >>> generate_html_table_for_top_bestsellers('Fantasy', 'books.db')
      '<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>...</table>'
      """
output:     import sqlite3
  
      conn = sqlite3.connect(db_path)
      cursor = conn.cursor()
  
      query = f"SELECT title, author, genre, sales FROM books WHERE genre = ? ORDER BY sales DESC LIMIT 10"
      cursor.execute(query, (genre,))
      rows = cursor.fetchall()
  
      conn.close()
  
      html_table = '<table><tr><th>Title</th><th>Author</th><th>Genre</th><th>Sales</th></tr>'
      for row in rows:
          title, author, genre, sales = row
          html_table += f'<tr><td>{title}</td><td>{author}</td><td>{genre}</td><td>{sales}</td></tr>'
      html_table += '</table>'
  
      return html_table