         defer { try? group.syncShutdownGracefully() }
         
         XCTAssertEqual(
-            try? api.execute(
+            try api.execute(
                 request: """
                 query {
                   date (value: "2001-01-01T00:00:00Z") {

        defer { try? group.syncShutdownGracefully() }
        
        XCTAssertEqual(
            try? api.execute(
                request: """
                query {
                  coord {

        defer { try? group.syncShutdownGracefully() }
        
        XCTAssertEqual(
            try api.execute(
                request: """
                query {
                  coord (input: {value: "(0.0, 0.0)"}) {
