fix tests

requirements.txt

@@ -3,6 +3,7 @@ mypy==1.4.1
 flake8==5.0.4
 isort==5.11.5
 types-requests==2.31.0.1
+types-pytz==2024.1.0.20240203
 websockets==11.0.3
 pandas_market_calendars==4.3.3
 pydantic==2.6.3

tastytrade/dxfeed/event.py

@@ -45,7 +45,7 @@ def from_stream(cls, data: list) -> List['Event']:  # pragma: no cover
         :return: list of event objects from data
         """
         objs = []
-        size = len(cls.__fields__)
+        size = len(cls.model_fields)
         multiples = len(data) / size
         if not multiples.is_integer():
             msg = 'Mapper data input values are not a multiple of the key size'

tastytrade/utils.py

@@ -1,8 +1,8 @@
 from datetime import date, datetime, timedelta
 
 import pandas_market_calendars as mcal  # type: ignore
-from pydantic import BaseModel
 import pytz
+from pydantic import BaseModel
 from requests import Response
 
 NYSE = mcal.get_calendar('NYSE')