--- /dev/null
+////////////////////////////////////////////////////////////////////////////
+//
+// Copyright 2014 Realm Inc.
+//
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////
+
+#import <Realm/RLMSchema.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class RLMRealm;
+
+//
+// RLMSchema private interface
+//
+@interface RLMSchema ()
+
+/**
+ Returns an `RLMSchema` containing only the given `RLMObject` subclasses.
+
+ @param classes The classes to be included in the schema.
+
+ @return An `RLMSchema` containing only the given classes.
+ */
++ (instancetype)schemaWithObjectClasses:(NSArray<Class> *)classes;
+
+@property (nonatomic, readwrite, copy) NSArray<RLMObjectSchema *> *objectSchema;
+
+// schema based on runtime objects
++ (instancetype)sharedSchema;
+
+// schema based upon all currently registered object classes
++ (instancetype)partialSharedSchema;
+
+// private schema based upon all currently registered object classes.
+// includes classes that are excluded from the default schema.
++ (instancetype)partialPrivateSharedSchema;
+
+// class for string
++ (nullable Class)classForString:(NSString *)className;
+
++ (nullable RLMObjectSchema *)sharedSchemaForClass:(Class)cls;
+
+@end
+
+NS_ASSUME_NONNULL_END