public async Task <string> AsyncMethod()
 {
     return(await Async.NotNullResult(""));
 }
 public Task <string> NonAsyncButTaskResultWithItemCanBeNull()
 {
     return(Async.CanBeNullResult <string>());
 }
 public async Task <string> AsyncMethodWithItemCanBeNull()
 {
     return(await Async.CanBeNullResult <string>());
 }
 public Task <string> NonAsyncButTaskResult()
 {
     return(Async.NotNullResult(""));
 }
 public async Task <string> AsyncFunction()
 {
     return(await Async.CanBeNullResult <string>());
 }