chore: import upstream snapshot with attribution

2026-07-13 13:02:50 +08:00
commit 0fc60fdcb1
5008 changed files with 910633 additions and 0 deletions
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+/*
+ * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
+ * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+*/
+
+namespace QuantConnect.Securities
+{
+    /// <summary>
+    /// The responsability of this model is to apply margin interest rate cash flows to the portfolio
+    /// </summary>
+    public interface IMarginInterestRateModel
+    {
+        /// <summary>
+        /// Apply margin interest rates to the portfolio
+        /// </summary>
+        /// <param name="marginInterestRateParameters">The parameters to use</param>
+        void ApplyMarginInterestRate(MarginInterestRateParameters marginInterestRateParameters);
+    }
+
+    /// <summary>
+    /// Provides access to a null implementation for <see cref="IMarginInterestRateModel"/>
+    /// </summary>
+    public static class MarginInterestRateModel
+    {
+        /// <summary>
+        /// The null margin interest rate model
+        /// </summary>
+        public static readonly IMarginInterestRateModel Null = new NullMarginInterestRateModel();
+
+        private sealed class NullMarginInterestRateModel : IMarginInterestRateModel
+        {
+            public void ApplyMarginInterestRate(MarginInterestRateParameters marginInterestRateParameters)
+            {
+            }
+        }
+    }
+}