input: Write a python function to instantiate a Book object and return its attributes as a dictionary.
  assert create_book_dict("To Kill a Mockingbird", "Harper Lee", 1960, 281) == {"title": "To Kill a Mockingbird", "author": "Harper Lee", "publication_year": 1960, "number_of_pages": 281}
  assert create_book_dict("1984", "George Orwell", 1949, 328) == {"title": "1984", "author": "George Orwell", "publication_year": 1949, "number_of_pages": 328}
  assert create_book_dict("The Great Gatsby", "F. Scott Fitzgerald", 1925, 180) == {"title": "The Great Gatsby", "author": "F. Scott Fitzgerald", "publication_year": 1925, "number_of_pages": 180}
output: def create_book_dict(title, author, publication_year, number_of_pages):
      class Book:
          def __init__(self, title, author, publication_year, number_of_pages):
              self.title = title
              self.author = author
              self.publication_year = publication_year
              self.number_of_pages = number_of_pages
  
      book = Book(title, author, publication_year, number_of_pages)
      return {
          "title": book.title,
          "author": book.author,
          "publication_year": book.publication_year,
          "number_of_pages": book.number_of_pages
      }