Examples of using External Language Server for Dotnet

Question

Hey everyone.

I have been taking a look at the External Language Server functionality to hook into some Dotnet functions, and I am hitting a bit of a wall.

Based on the example in the documentation here I can get the same result doing:

ENV>Set netGate = $System.external.getDotNetGateway()
ENV>Set netProxy=netGate.new("System.DateTime",0)
ENV>Write netProxy.Now,!
2025-12-31 14:37:58.6022705

However, if I then try another system class, I get an error:

ENV>Set netGate = $System.external.getDotNetGateway()
ENV>Set netProxy=netGate.new("System.Convert",0)
ENV>Write netProxy.ToBoolean(123)
<THROW>%Constructor+33^%Net.Remote.Object.1 *%Net.Remote.Exception <GATEWAY> InterSystems.Data.IRISClient.Gateway.GatewayException InterSystems.Data.IRISClient.Gateway.Gateway.dynamicFindConstructor(String className, Int32 parameterCount, Boolean isRecast) Constructor not found: System.Convert(1)

(don't judge the method choice, I know it's not supposed to do anything except return what's being passed in. Just seemed like a safe choice)

It feels like I'm missing an obvious step here.