input: Write a function to convert a list of book lists into a list of dictionaries, where each dictionary contains 'title', 'author', and 'pages' as keys. The function should return the resulting list of dictionaries.
  def convert_books_to_dict(book_lists):
      book_list = []
      for book in book_lists:
          book_dict = {'title': book[0], 'author': book[1], 'pages': book[2]}
          book_list.append(book_dict)
      return book_list
  
  assert convert_books_to_dict([['The Hobbit', 'J.R.R. Tolkien', 295], ['The Catcher in the Rye', 'J.D. Salinger', 223]])==[
    {'title': 'The Hobbit', 'author': 'J.R.R. Tolkien', 'pages': 295},
    {'title': 'The Catcher in the Rye', 'author': 'J.D. Salinger', 'pages': 223},
  ]
  assert convert_books_to_dict([])==[]
output: def convert_books_to_dict(book_lists):
      book_list = []
      for book in book_lists:
          book_dict = {'title': book[0], 'author': book[1], 'pages': book[2]}
          book_list.append(book_dict)
      return book_list