public static IFailableResult <TNewResult, TFailure> OnSuccess <TResult, TFailure, TNewResult>(
     this IFailableResult <TResult, TFailure> result,
     Func <TResult, IFailableResult <TNewResult, TFailure> > onSuccess
     ) =>
 result.Handle(
     s => onSuccess(s),
     f => FailureResult <TNewResult, TFailure> .Create(f));
 public static Task <IFailableResult <TNewResult, TFailure> > OnSuccessAsync <TResult, TFailure, TNewResult>(
     this IFailableResult <TResult, TFailure> result,
     Func <TResult, Task <IFailableResult <TNewResult, TFailure> > > onSuccessAsync
     ) =>
 result.Handle(
     onSuccessAsync,
     f => FailureResult <TNewResult, TFailure> .CreateAsync(f));
 public static IFailableResult <TResult, TNewFailure> OnFailure <TResult, TFailure, TNewFailure>(
     this IFailableResult <TResult, TFailure> result,
     Func <TFailure, TNewFailure> onFailure
     ) =>
 result.Handle(
     s => SuccessResult <TResult, TNewFailure> .Create(s),
     f => FailureResult <TResult, TNewFailure> .Create(onFailure(f)));
 public static Task <IFailableResult <TResult, TNewFailure> > OnFailureAsync <TResult, TFailure, TNewFailure>(
     this IFailableResult <TResult, TFailure> result,
     Func <TFailure, Task <TNewFailure> > onFailureAsync,
     bool configureAwait = false
     ) =>
 result.Handle(
     s => SuccessResult <TResult, TNewFailure> .CreateAsync(s),
     async f => FailureResult <TResult, TNewFailure> .Create(await onFailureAsync(f).ConfigureAwait(configureAwait)));
 public static Task <IFailableResult <TNewResult, TFailure> > OnSuccessAsync <TResult, TFailure, TNewResult>(
     this Task <IFailableResult <TResult, TFailure> > asyncResult,
     Func <TResult, Task <IFailableResult <TNewResult, TFailure> > > onSuccessAsync,
     bool configureAwait = false
     ) =>
 asyncResult.HandleAsync(
     onSuccessAsync,
     f => FailureResult <TNewResult, TFailure> .CreateAsync(f),
     configureAwait);
 public static Task <IFailableResult <TResult, TNewFailure> > OnFailureAsync <TResult, TFailure, TNewFailure>(
     this Task <IFailableResult <TResult, TFailure> > asyncResult,
     Func <TFailure, TNewFailure> onFailure,
     bool configureAwait = false
     ) =>
 asyncResult.HandleAsync(
     s => SuccessResult <TResult, TNewFailure> .Create(s),
     f => FailureResult <TResult, TNewFailure> .Create(onFailure(f)),
     configureAwait);