         
         let synthExpectation = expectationWithDescription("Synthesize Audio")
     
-        service!.synthesize(testString) { data, error in
+        service.synthesize(testString) { data, error in
             
                 print(error)
                 XCTAssertNil(error)

    func testSynthAndPlaySSML() {
        
        let synthPlaySSMLExpectation = expectationWithDescription("Synthesize Audio")
        
        
        
        
        service!.synthesize(ssmlString) { data, error in
            
            if let data = data {
                

        
        waitForExpectationsWithTimeout(timeout, handler: { error in XCTAssertNil(error, "Timeout") })
    }
}
