Changed name Collateral -> MarginMode, collateral -> margin_mode, and _supported_trading_mode_margin_pairs -> _supported_trading_margin_pairs

freqtrade/enums/marginmode.py

@@ -0,0 +1,11 @@
+from enum import Enum
+
+
+class MarginMode(Enum):
+    """
+    Enum to distinguish between
+    cross margin/futures margin_mode and
+    isolated margin/futures margin_mode
+    """
+    CROSS = "cross"
+    ISOLATED = "isolated"