diff --git a/lib/swift/Sources/TClient.swift b/lib/swift/Sources/TClient.swift
new file mode 100644
index 0000000..c404c9a
--- /dev/null
+++ b/lib/swift/Sources/TClient.swift
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ */
+
+
+open class TClient {
+  public let inProtocol: TProtocol
+  public let outProtocol: TProtocol
+
+  public init(inoutProtocol: TProtocol) {
+    self.inProtocol = inoutProtocol
+    self.outProtocol = inoutProtocol
+  }
+
+  public init(inProtocol: TProtocol, outProtocol: TProtocol) {
+    self.inProtocol = inProtocol
+    self.outProtocol = outProtocol
+  }
+}
+
+
+open class TAsyncClient<Protocol: TProtocol, Factory: TAsyncTransportFactory> {
+  public var factory: Factory
+  public init(with protocol: Protocol.Type, factory: Factory) {
+    self.factory = factory
+  }
+}
+
+
+public enum TAsyncResult<T> {
+  case success(T)
+  case error(Swift.Error)
+  
+  public func value() throws -> T {
+    switch self {
+    case .success(let t): return t
+    case .error(let e): throw e
+    }
+  }
+}