diff --git a/src/repository/repository.ts b/src/repository/repository.ts
index b9f753f..800e754 100644
--- a/src/repository/repository.ts
+++ b/src/repository/repository.ts
@@ -24,12 +24,13 @@ export abstract class Repository<TEntity extends Record<string, any>, TEntityId>
     abstract query<T extends TEntity>(enumerable?: IEnumerable<T>, meta?: Partial<{ etag: string, continuationToken: string }>): AsyncIterableIterator<T>
 
     abstract create(entity: TEntity, meta?: Partial<{ etag: string }>): Promise<TEntity | null>
+    abstract create<K extends keyof TEntity = null>(entity: Omit<TEntity, K>, meta: Partial<{ etag: string }>, ...excludedFields: Array<K>): Promise<TEntity | null>
     abstract create<T extends TEntity>(entity: T, meta?: Partial<{ etag: string }>): Promise<T | null>
     
     abstract read(id?: TEntityId): Promise<TEntity | null>
     
-    abstract update(entity: Partial<TEntity>, meta?: Partial<{ etag: string }>, ...fields: Array<keyof TEntity>): Promise<TEntity | boolean>
-    abstract update<T extends TEntity>(entity: Partial<T>, meta?: Partial<{ etag: string }>, ...fields: Array<keyof T>): Promise<T | boolean>
+    abstract update(entity: Partial<TEntity>, meta?: Partial<{ etag: string }>, ...updateFields: Array<keyof TEntity>): Promise<TEntity | boolean>
+    abstract update<T extends TEntity>(entity: Partial<T>, meta?: Partial<{ etag: string }>, ...updateFields: Array<keyof T>): Promise<T | boolean>
     
     abstract delete(id: TEntity | TEntityId, meta?: Partial<{ etag: string }>): Promise<boolean>