starting function check...

find2010Movies: 247 movies found {
  _id: new ObjectId('63920187ee9e1a9c62bd44f2'),
  title: '127 Hours (2010)'
}
find2010Comedies: 97 movies found {
  _id: new ObjectId('63920187ee9e1a9c62bd448e'),
  title: 'A-Team, The (2010)',
  genres: 'Action|Comedy|Thriller'
}
find610Ratings: 1302 movies found {
  _id: new ObjectId('63920187ee9e1a9c62bed674'),
  title: '13 Assassins (Jûsan-nin no shikaku) (2010)',
  rating: 5
}
findAverageRating: avg rating of The Princess Bride = 4.232394366197183
countDistinctMovies: 9719 distinct movies rated in the movie_lens_db


findOldestPerson: the oldest person in wmdb is D.W.Griffith, born on 1875-01-22
findLongestCast: Avengers: Infinity War has the longest cast of 19 people
findMoviesBefore1990: 168 movies found with release dates before 1990 {
  _id: new ObjectId('63d1cc5ce7af03ed30f5ecd9'),
  title: '2001: A Space Odyssey',
  release: '1968'
}


insertPet: true
find pet: {
  _id: new ObjectId('65f8aba77d90a0bbe12bd74f'),
  name: 'Pup',
  birthday: 2021-08-10T00:00:00.000Z,
  color: 'Black',
  animalType: 'Dog',
  weight: 5
}
updatePet: true
find updated pet: {
  _id: new ObjectId('65f8aba77d90a0bbe12bd74f'),
  name: 'Pup',
  birthday: 2021-08-10T00:00:00.000Z,
  color: 'Black',
  animalType: 'Dog',
  weight: 8
}
deletePet: true
after delete: null