AutoMapper DI into Azure Functions

appmodule.cs

public class AppModule : Module
{
    public override void Load(IServiceCollection services)
    {
        ...
        services.AddAutoMapper(Assembly.GetAssembly(this.GetType()));
        ...
    }
}

function.cs

public class GetSecretFunction : FunctionBase<ILogger>, IGetSecretFunction
{
    ...
    private readonly IMapper _mapper;

    public GetSecretFunction(AppSettings settings, IMapper mapper, IKeyVaultClient kv)
    {
        ...
        this._mapper = mapper ?? throw new ArgumentNullException(nameof(mapper));
    }

    public override async Task<TOutput> InvokeAsync<TInput, TOutput>(TInput input, FunctionOptionsBase options = null)
    {
        ...
        var mapped = this._mapper.Map<SecretModel>(secret);
        ...
    }
}

httptrigger.cs

public static class SecretsHttpTrigger
{
    // Register dependencies through the fucntion factory.
    public static IFunctionFactory Factory = new FunctionFactory<AppModule>();

    [FunctionName(nameof(GetSecret))]
    public static async Task<IActionResult> GetSecret(
        [HttpTrigger(AuthorizationLevel.Function, "get", Route = "secrets/{name}")] HttpRequest req,
        string name,
        ILogger log)
    {
        IActionResult result;
        try
        {
            ...

            // Invokes function containing all business logics
            result = await Factory.Create<IGetSecretFunction, ILogger>(log)
                                  .InvokeAsync<HttpRequest, IActionResult>(req, options)
                                  .ConfigureAwait(false);
            ...
        }
        return result;
    }
}

profile.cs

public class SecretProfile : Profile
{
    public SecretProfile()
    {
        this.CreateMap<SecretBundle, SecretModel>()
            .ForMember(d => d.Id, o => o.MapFrom(s => s.Id))
            ...
            ;
    }
}

Where can I locate an implemented code for this in azure functions App?