12.12.2023 Updates

New Major Version SDK Release (v7.0.0):<https://github.com/ProjectOpenSea/opensea-js/releases/tag/v7.0.0>
Rate Limits: doubled default rate limits for /v2
Events (Analytics) API
- all events now have an event_timestamp (posix timestamp at which the event occured on the blockchain)
- transfer events now have an nft field
- cancel events now have the following fields: nft, order_type, and maker
  - note: API now returns both canceled listings and canceled offers when querying for event_type=cancel
- event payment quantity now returns as a string instead of a number (for compatibility with JavaScript)
- general purpose Get Events endpoint added
NFT API
- added an endpoint for getting payment tokens (has both USD and ETH price for the token)
- added opensea_url to the NFT model
- added valid payment_tokens to the collection response
Marketplace API
- added price object to offers