Implement Inventory Management Service with CRUD operations for warehouses and inventory items, stock operations, and bulk processing capabilities.
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using CMSMicroservice.Domain.Entities;
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using CMSMicroservice.Domain.Enums;
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namespace CMSMicroservice.Application.Common.Interfaces;
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/// <summary>
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/// سرویس مدیریت موجودی - لایه بالاتر برای عملیات business
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/// این سرویس مسئول همگامسازی موجودی بین InventoryItem و Product.RemainingCount است
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/// </summary>
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public interface IInventoryService
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{
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#region Initialization
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/// <summary>
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/// ایجاد رکورد موجودی برای محصول جدید
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/// این متد باید در CreateProductCommandHandler و CreateDiscountProductCommandHandler فراخوانی شود
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/// </summary>
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/// <param name="productId">شناسه محصول (Product.Id یا DiscountProduct.Id)</param>
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/// <param name="productType">نوع محصول (RegularProduct یا DiscountProduct)</param>
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/// <param name="initialQuantity">موجودی اولیه</param>
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/// <param name="warehouseId">شناسه انبار (پیشفرض: انبار اصلی)</param>
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/// <param name="lowStockThreshold">آستانه هشدار کمموجودی</param>
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/// <param name="ct">CancellationToken</param>
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/// <returns>شناسه InventoryItem ایجاد شده</returns>
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Task<long> InitializeInventoryAsync(
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long productId,
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ProductType productType,
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int initialQuantity,
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long? warehouseId = null,
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int lowStockThreshold = 10,
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CancellationToken ct = default);
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#endregion
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#region Query Operations
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/// <summary>
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/// دریافت موجودی یک محصول
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/// </summary>
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Task<InventoryItem?> GetInventoryAsync(
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long productId,
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ProductType productType,
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long? warehouseId = null,
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CancellationToken ct = default);
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/// <summary>
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/// دریافت موجودی قابل فروش (Quantity - ReservedQuantity)
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/// </summary>
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Task<int> GetAvailableQuantityAsync(
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long productId,
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ProductType productType,
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long? warehouseId = null,
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CancellationToken ct = default);
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/// <summary>
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/// بررسی اینکه آیا موجودی کافی برای فروش وجود دارد
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/// </summary>
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Task<bool> CheckAvailabilityAsync(
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long productId,
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ProductType productType,
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int requiredQuantity,
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long? warehouseId = null,
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CancellationToken ct = default);
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/// <summary>
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/// دریافت لیست محصولات کمموجود
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/// </summary>
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Task<List<InventoryItem>> GetLowStockItemsAsync(
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ProductType? productType = null,
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long? warehouseId = null,
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int count = 50,
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CancellationToken ct = default);
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/// <summary>
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/// دریافت تاریخچه حرکات موجودی
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/// </summary>
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Task<List<StockMovement>> GetStockMovementsAsync(
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long productId,
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ProductType productType,
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DateTime? fromDate = null,
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DateTime? toDate = null,
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CancellationToken ct = default);
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#endregion
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#region Order Flow Operations
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/// <summary>
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/// رزرو موجودی برای سفارش pending
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/// این متد در PlaceOrderCommandHandler فراخوانی میشود
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/// فقط ReservedQuantity را افزایش میدهد، Quantity تغییر نمیکند
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/// </summary>
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/// <param name="productId">شناسه محصول</param>
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/// <param name="productType">نوع محصول</param>
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/// <param name="quantity">تعداد رزرو</param>
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/// <param name="orderId">شناسه سفارش (Order.Id یا DiscountOrder.Id)</param>
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/// <param name="ct">CancellationToken</param>
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/// <returns>true اگر رزرو موفق بود</returns>
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Task<bool> ReserveStockAsync(
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long productId,
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ProductType productType,
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int quantity,
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long? orderId = null,
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CancellationToken ct = default);
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/// <summary>
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/// آزادسازی رزرو (لغو سفارش یا timeout)
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/// این متد در CancelOrderCommandHandler فراخوانی میشود
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/// </summary>
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Task<bool> ReleaseReservationAsync(
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long productId,
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ProductType productType,
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int quantity,
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long? orderId = null,
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CancellationToken ct = default);
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/// <summary>
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/// تایید فروش - کسر واقعی موجودی
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/// این متد در CompleteOrderPaymentCommandHandler فراخوانی میشود
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/// ReservedQuantity کاهش مییابد، Quantity کاهش مییابد، Product.RemainingCount sync میشود
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/// </summary>
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Task<bool> ConfirmSaleAsync(
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long productId,
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ProductType productType,
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int quantity,
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long? orderId = null,
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CancellationToken ct = default);
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#endregion
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#region Stock Management Operations
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/// <summary>
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/// ورود کالا به انبار (Restock)
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/// </summary>
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/// <param name="productId">شناسه محصول</param>
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/// <param name="productType">نوع محصول</param>
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/// <param name="quantity">تعداد ورودی</param>
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/// <param name="referenceNumber">شماره مرجع (مثل شماره فاکتور خرید)</param>
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/// <param name="note">یادداشت</param>
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/// <param name="performedByUserId">شناسه کاربر انجامدهنده</param>
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/// <param name="ct">CancellationToken</param>
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Task<bool> AddStockAsync(
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long productId,
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ProductType productType,
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int quantity,
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string? referenceNumber = null,
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string? note = null,
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long? performedByUserId = null,
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CancellationToken ct = default);
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/// <summary>
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/// تعدیل موجودی (تنظیم به مقدار جدید)
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/// </summary>
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Task<bool> AdjustStockAsync(
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long productId,
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ProductType productType,
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int newQuantity,
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string? note = null,
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long? performedByUserId = null,
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CancellationToken ct = default);
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/// <summary>
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/// ثبت برگشت کالا از مشتری
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/// </summary>
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Task<bool> ProcessReturnAsync(
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long productId,
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ProductType productType,
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int quantity,
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long? orderId = null,
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string? note = null,
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long? performedByUserId = null,
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CancellationToken ct = default);
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/// <summary>
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/// ثبت ضایعات/مفقودی
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/// </summary>
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Task<bool> RecordLossAsync(
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long productId,
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ProductType productType,
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int quantity,
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StockMovementType lossType, // Damaged or Lost
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string? note = null,
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long? performedByUserId = null,
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CancellationToken ct = default);
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#endregion
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#region Bulk Operations
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/// <summary>
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/// رزرو موجودی برای چند آیتم (یک سفارش با چند محصول)
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/// </summary>
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Task<bool> BulkReserveStockAsync(
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IEnumerable<(long ProductId, ProductType ProductType, int Quantity)> items,
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long? orderId = null,
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CancellationToken ct = default);
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/// <summary>
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/// آزادسازی رزرو برای چند آیتم
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/// </summary>
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Task<bool> BulkReleaseReservationAsync(
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IEnumerable<(long ProductId, ProductType ProductType, int Quantity)> items,
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long? orderId = null,
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CancellationToken ct = default);
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/// <summary>
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/// تایید فروش برای چند آیتم
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/// </summary>
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Task<bool> BulkConfirmSaleAsync(
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IEnumerable<(long ProductId, ProductType ProductType, int Quantity)> items,
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long? orderId = null,
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CancellationToken ct = default);
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#endregion
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}
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