From 1c27aaab724b781487a92f103363071d1276c18f Mon Sep 17 00:00:00 2001
From: Xu Wang <waxu@google.com>
Date: Sun, 18 Oct 2020 20:24:13 +0100
Subject: [PATCH] Declare type of 'dur'.

---
 freqtrade/rpc/telegram.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/freqtrade/rpc/telegram.py b/freqtrade/rpc/telegram.py
index bfe486951..8404625f1 100644
--- a/freqtrade/rpc/telegram.py
+++ b/freqtrade/rpc/telegram.py
@@ -6,7 +6,7 @@ This module manage Telegram communication
 import json
 import logging
 import arrow
-from typing import Any, Callable, Dict
+from typing import Any, Callable, Dict, List
 
 from tabulate import tabulate
 from telegram import ParseMode, ReplyKeyboardMarkup, Update
@@ -780,7 +780,7 @@ class Telegram(RPC):
             )
 
         # Duration
-        dur = {'Wins': [], 'Draws': [], 'Losses': []}
+        dur: Dict[str, List[int]] = {'Wins': [], 'Draws': [], 'Losses': []}
         for trade in trades_closed:
             if trade['close_date'] is not None and trade['open_date'] is not None:
                 trade_dur = arrow.get(trade['close_date']) - arrow.get(trade['open_date'])