/// <summary>
/// Match condition
/// </summary>
/// <param name="condition">Condition to evaluate</param>
/// <param name="action">Action to call if pattern match</param>
public PatternMatch <T> When(Func <T, bool> condition, Action action)
{
_inner.When(condition, () =>
{
action();
return(Nothing.Instance);
});
return(this);
}