Add dividend and split ids

Author: justinpolygon

polygon/rest/models/dividends.py

@@ -5,6 +5,7 @@
 @modelclass
 class Dividend:
     "Dividend contains data for a historical cash dividend, including the ticker symbol, declaration date, ex-dividend date, record date, pay date, frequency, and amount."
+    id: Optional[int] = None
     cash_amount: Optional[float] = None
     currency: Optional[str] = None
     declaration_date: Optional[str] = None

polygon/rest/models/splits.py

@@ -5,6 +5,7 @@
 @modelclass
 class Split:
     "Split contains data for a historical stock split, including the ticker symbol, the execution date, and the factors of the split ratio."
+    id: Optional[int] = None
     execution_date: Optional[str] = None
     split_from: Optional[int] = None
     split_to: Optional[int] = None