conditional checks

messages/Condition.py

@@ -0,0 +1,8 @@
+from dataclasses import dataclass
+
+@dataclass
+class Condition:
+    id: str
+    symbol: str
+    condition: str
+    value: float

messages/TickerData.py

@@ -1,6 +1,5 @@
 from dataclasses import dataclass
 from typing import Generic, TypeVar, Optional
-import json
 
 T = TypeVar('T')