From be84d0dae1c528b2aa1b959a1892267b19b5d8e8 Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Tue, 19 Nov 2024 17:05:13 -0500
Subject: [PATCH] 'Fix `Optional` and use `'linear/reverse'` in
 `OptionPair.venue`'

---
 piker/brokers/deribit/venues.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/piker/brokers/deribit/venues.py b/piker/brokers/deribit/venues.py
index 91a1583f..f74c970e 100644
--- a/piker/brokers/deribit/venues.py
+++ b/piker/brokers/deribit/venues.py
@@ -22,6 +22,7 @@ from __future__ import annotations
 import pendulum
 from typing import (
     Literal,
+    Optional,
 )
 from decimal import Decimal
 
@@ -111,7 +112,6 @@ class OptionPair(Pair, frozen=True):
     block_trade_min_trade_amount: int # '25'
     block_trade_commission: float # '0.003'
 
-
     # NOTE: see `.data._symcache.SymbologyCache.load()` for why
     ns_path: str = 'piker.brokers.deribit:OptionPair'
 
@@ -122,7 +122,7 @@ class OptionPair(Pair, frozen=True):
 
     @property
     def venue(self) -> str:
-        return 'option'
+        return f'{self.instrument_type}_option'
 
     @property
     def bs_fqme(self) -> str: