fix bug

py-client/sdk/models.py

@@ -133,6 +133,13 @@ class Assets:
         )
 
 
+@dataclass(slots=True)
+class Portfolio:
+    assets: Assets
+    positions: dict[str, PositionItem]
+    orders: list[OrderItem]
+
+
 def _trade_datetime(data: dict[str, Any]) -> datetime | None:
     date = str(data.get("m_strInsertDate") or "")
     clock = str(data.get("m_strInsertTime") or "").replace(":", "").zfill(6)
@@ -148,6 +155,16 @@ class Tick:
     last_close: float = 0.0
     raw: dict[str, Any] = field(default_factory=dict)
 
+    @classmethod
+    def from_dict(cls, data: Any) -> "Tick":
+        if not isinstance(data, dict):
+            return cls()
+        return cls(
+            last_price=_number(data.get("lastPrice", data.get("last_price", data.get("LastPrice")))),
+            last_close=_number(data.get("lastClose", data.get("last_close", data.get("LastClose")))),
+            raw=data,
+        )
+
 
 @dataclass(slots=True)
 class HistoryDataRequest: