refactor QMT client and optimize API

py-client/sdk/models.py

@@ -11,7 +11,7 @@ def _number(value: Any, kind: type = float) -> Any:
         return kind()
 
 
-@dataclass
+@dataclass(slots=True)
 class Position:
     stock_code: str = ""
     stock_name: str = ""
@@ -44,20 +44,20 @@ class Position:
         )
 
 
-@dataclass
+@dataclass(slots=True)
 class Assets:
     total: float = 0.0
     available: float = 0.0
 
 
-@dataclass
+@dataclass(slots=True)
 class Tick:
     last_price: float = 0.0
     last_close: float = 0.0
     raw: dict[str, Any] = field(default_factory=dict)
 
 
-@dataclass
+@dataclass(slots=True)
 class HistoryDataRequest:
     length: int = 10
     period: str = ""
@@ -66,7 +66,7 @@ class HistoryDataRequest:
     skip_paused: bool = True
 
 
-@dataclass
+@dataclass(slots=True)
 class MarketDataRequest:
     fields: list[str] = field(default_factory=list)
     stocks: list[str] = field(default_factory=list)
@@ -77,7 +77,7 @@ class MarketDataRequest:
     count: int = 0
 
 
-@dataclass
+@dataclass(slots=True)
 class FinancialDataRequest:
     tabname: str = ""; colname: str = ""; market: str = ""; code: str = ""
     report_type: str = ""; barpos: int = 0
@@ -85,22 +85,22 @@ class FinancialDataRequest:
     start_date: str = ""; end_date: str = ""
 
 
-@dataclass
+@dataclass(slots=True)
 class FactorDataRequest:
     field_list: list[str] = field(default_factory=list); stock_list: list[str] = field(default_factory=list)
     stock_code: str = ""; start_date: str = ""; end_date: str = ""
 
 
-@dataclass
+@dataclass(slots=True)
 class BSMPriceRequest:
     option_type: str; object_prices: Any; strike_price: float; risk_free: float; sigma: float; days: int; dividend: float
 
 
-@dataclass
+@dataclass(slots=True)
 class BSMIVRequest:
     option_type: str; object_prices: float; strike_price: float; option_price: float; risk_free: float; days: int; dividend: float
 
 
-@dataclass
+@dataclass(slots=True)
 class LocalDataRequest:
     stock_code: str; start_time: str = ""; end_time: str = ""; period: str = ""; divid_type: str = ""; count: int = 0