NETCore3Demo/CosmosDBTest/AzureCosmosDB/PartitionKeyAttribute.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace CosmosDBTest.AzureCosmosDB
{
    [AttributeUsage(AttributeTargets.Property)]
    public class PartitionKeyAttribute : Attribute
    {
    }
}