Florian Hockmann closed TINKERPOP-1901.
    Resolution: Fixed

> Enable usage of enums in more steps in Gremlin.Net
> --------------------------------------------------
>                 Key: TINKERPOP-1901
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1901
>             Project: TinkerPop
>          Issue Type: Improvement
>          Components: dotnet
>    Affects Versions: 3.2.7, 3.3.1
>            Reporter: Florian Hockmann
>            Assignee: Florian Hockmann
>            Priority: Minor
>             Fix For: 3.2.8, 3.3.2
> Java enums can implement interfaces and some Gremlin steps take interfaces as 
> arguments that are implemented by enums like {{T}} or {{P}} in Java. However, 
> C# enums can't have any methods and therefore also not implement interfaces. 
> For this reason, step arguments whose type is one of those interfaces 
> ({{Predicate}}, {{Function}}, ...) currently have the type {{object}} in 
> Gremlin.Net which makes it hard for users to know what kind of values they 
> can use for these arguments.
> This overload of the {{By}} step is a good example for this:
>  * In Gremlin-java:
> {code:java}
> public default <V> GraphTraversal<S, E> by(final Traversal<?, ?> traversal, 
> final Comparator<V> comparator)
> {code}
>  * In Gremlin.Net:
> {code}
> public GraphTraversal<S, E> By (object function, object comparator)
> {code}
> [~jorgebg] [suggested two possible 
> solutions|https://github.com/apache/tinkerpop/pull/792#discussion_r167847541] 
> for this problem:
> {quote} * Use a class for T (not an enum), properties like T.Id could return 
> instances of whatever interface we create for it. Given that java enums 
> functionality is more comprehensive than what C# currently supports, it makes 
> sense to use a class IMO.
>  * Generate the offending traversal methods manually.{quote}

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