Refactor and ignore n/a exchange callbacks

core/lib/schemas/oanda_s.py

@@ -353,6 +353,7 @@ AccountInstrumentsSchema = {
     )
 }
 
+
 class OrderTransaction(BaseModel):
     id: str
     accountID: str
@@ -367,9 +368,11 @@ class OrderTransaction(BaseModel):
     positionFill: str
     reason: str
 
+
 class OrderCreate(BaseModel):
     orderCreateTransaction: OrderTransaction
 
+
 OrderCreateSchema = {
     "id": "orderCreateTransaction.id",
     "accountID": "orderCreateTransaction.accountID",
@@ -385,18 +388,22 @@ OrderCreateSchema = {
     "reason": "orderCreateTransaction.reason",
 }
 
+
 class PriceBid(BaseModel):
     price: str
     liquidity: int
 
+
 class PriceAsk(BaseModel):
     price: str
     liquidity: int
 
+
 class PriceQuoteHomeConversionFactors(BaseModel):
     positiveUnits: str
     negativeUnits: str
 
+
 class Price(BaseModel):
     type: str
     time: str
@@ -409,10 +416,12 @@ class Price(BaseModel):
     quoteHomeConversionFactors: PriceQuoteHomeConversionFactors
     instrument: str
 
+
 class PricingInfo(BaseModel):
     time: str
     prices: list[Price]
 
+
 PricingInfoSchema = {
     "time": "time",
     "prices": (