Changes to Get perpetuals watched by an account

the response property next became nullable for the status 200

the response property perpetuals/items/created_at became nullable for the status 200

the response property perpetuals/items/description became nullable for the status 200

the response property perpetuals/items/image_url became nullable for the status 200

the response property perpetuals/items/market became nullable for the status 200

the perpetuals/items/stats response's property type changed from object to no type for status 200

removed the optional property perpetuals/items/stats/funding_rate from the response with the 200 status

removed the optional property perpetuals/items/stats/mark_price from the response with the 200 status

removed the optional property perpetuals/items/stats/open_interest from the response with the 200 status

removed the optional property perpetuals/items/stats/oracle_price from the response with the 200 status

removed the optional property perpetuals/items/stats/price_change_24h from the response with the 200 status

removed the optional property perpetuals/items/stats/price_usd from the response with the 200 status

removed the optional property perpetuals/items/stats/volume_24h from the response with the 200 status

added the media type */* for the response with the status 400

added the media type */* for the response with the status 404

added the optional property code to the response with the 409 status

added PerpetualFutureStatsResponse subschema #2 to the perpetuals/items/stats response property anyOf list for the response status 200