Wrap IEndpointInstance to set custom options on all sends with NServiceBus 7

CustomOptionsWrapper.cs

using System;
using System.Threading;
using System.Threading.Tasks;
using NServiceBus;

public class CustomOptionsWrapper : IEndpointInstance
{
    readonly IEndpointInstance innerInstance;
    readonly IPrincipalAccessor principalAccessor;
    
    public CustomOptionsWrapper(IEndpointInstance innerInstance, IPrincipalAccessor principalAccessor)
    {
        this.innerInstance = innerInstance;
    }

    public Task Send(object message, SendOptions options)
    {
        options.SetHeader("UserName", principalAccessor.CurrentPrincipal.Identity.Name);
        return innerInstance.Send(message, options);
    }

    public Task Send<T>(Action<T> messageConstructor, SendOptions options)
    {
        options.SetHeader("UserName", principalAccessor.CurrentPrincipal.Identity.Name);
        return innerInstance.Send(messageConstructor, options);
    }

    public Task Publish(object message, PublishOptions options)
    {
        options.SetHeader("UserName", principalAccessor.CurrentPrincipal.Identity.Name);
        return innerInstance.Publish(message, options);
    }

    public Task Publish<T>(Action<T> messageConstructor, PublishOptions publishOptions)
    {
        publishOptions.SetHeader("UserName", principalAccessor.CurrentPrincipal.Identity.Name);
        return innerInstance.Publish(messageConstructor, publishOptions);
    }

    public Task Subscribe(Type eventType, SubscribeOptions options)
    {
        return innerInstance.Subscribe(eventType, options);
    }

    public Task Unsubscribe(Type eventType, UnsubscribeOptions options)
    {
        return innerInstance.Unsubscribe(eventType, options);
    }

    public Task Stop()
    {
        return innerInstance.Stop();
    }
}