Add hyperliquid exchange overrides

part of #10377

freqtrade/exchange/hyperliquid.py

@@ -0,0 +1,24 @@
+"""Hyperliquid exchange subclass"""
+
+import logging
+from typing import Dict
+
+from freqtrade.exchange import Exchange
+
+
+logger = logging.getLogger(__name__)
+
+
+class Hyperliquid(Exchange):
+    """Hyperliquid exchange class.
+    Contains adjustments needed for Freqtrade to work with this exchange.
+    """
+
+    _ft_has: Dict = {
+        # Only the most recent 5000 candles are available according to the
+        # exchange's API documentation.
+        "ohlcv_has_history": True,
+        "ohlcv_candle_limit": 5000,
+        "trades_has_history": False,  # Trades endpoint doesn't seem available.
+        "exchange_has_overrides": {"fetchTrades": False},
+    }