Function: toPromise() 
toPromise<
T,E>(task):Promise<Result<T,E>>
Standalone version of Task.prototype.toPromise.
Type Parameters 
T 
T
The type of the value when the Task resolves successfully.
E 
E
The type of the rejection reason when the Task rejects.
Parameters 
task 
Task<T, E>
Returns 
Promise<Result<T, E>>