Task<IFunctionInstanceLogger> IFunctionInstanceLoggerProvider.GetAsync(CancellationToken cancellationToken)
 {
     IFunctionInstanceLogger logger = new NullFunctionInstanceLogger();
     return Task.FromResult(logger);
 }
        Task <IFunctionInstanceLogger> IFunctionInstanceLoggerProvider.GetAsync(CancellationToken cancellationToken)
        {
            IFunctionInstanceLogger logger = new NullFunctionInstanceLogger();

            return(Task.FromResult(logger));
        }