core

Microsoft.Extensions.Configuration.Json

 {
     namespace Microsoft.Extensions.Configuration {
         public static class JsonConfigurationExtensions {
+            public static IConfigurationBuilder AddJsonStream(this IConfigurationBuilder builder, Stream stream);
         }
     }
     namespace Microsoft.Extensions.Configuration.Json {
+        public class JsonStreamConfigurationProvider : StreamConfigurationProvider {
+            public JsonStreamConfigurationProvider(JsonStreamConfigurationSource source);
+            public override void Load(Stream stream);
+        }
+        public class JsonStreamConfigurationSource : StreamConfigurationSource {
+            public JsonStreamConfigurationSource();
+            public override IConfigurationProvider Build(IConfigurationBuilder builder);
+        }
     }
 }