input: Write a function to convert a list of book details into a dictionary where each book is represented by its title, author, and number of pages. The function should return a list of dictionaries.
  
  assert store_books([['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 store_books([['1984', 'George Orwell', 328]]) == [
    {'title': '1984', 'author': 'George Orwell', 'pages': 328},
  ]
  assert store_books([]) == []
output: def store_books(books):
      return [{'title': book[0], 'author': book[1], 'pages': book[2]} for book in books]