Updated property on type to reflect the fact that it can return a null value (which it will if a key doesn't have any data in the state store). Only enabled nullable annotation on this file for now. (#1259)

Signed-off-by: Whit Waldo <[email protected]>
Co-authored-by: Phillip Hoff <[email protected]>

Author: WhitWaldo

src/Dapr.Client/StateQueryResponse.cs

@@ -11,6 +11,7 @@ You may obtain a copy of the License at
 limitations under the License.
 */
 
+#nullable enable
 using System.Collections.Generic;
 
 namespace Dapr.Client
@@ -75,9 +76,9 @@ public StateQueryItem(string key, TValue data, string etag, string error)
         public string Key { get; }
 
         /// <summary>
-        /// The data of the the key from the matched query.
+        /// The data of the key from the matched query.
         /// </summary>
-        public TValue Data { get; }
+        public TValue? Data { get; }
 
         /// <summary>
         /// The ETag for the key from the matched query.