public override void Initialize(AnalysisContext context)
        {
            if (context == null)
            {
                throw new ArgumentNullException(nameof(context));
            }

            base.Initialize(context);

            context.RegisterSyntaxNodeAction(
                f => AvoidUsageOfUsingAliasDirectiveRefactoring.Analyze(f, (UsingDirectiveSyntax)f.Node),
                SyntaxKind.UsingDirective);
        }
        private void AnalyzeSyntaxNode(SyntaxNodeAnalysisContext context)
        {
            var usingDirective = (UsingDirectiveSyntax)context.Node;

            AvoidUsageOfUsingAliasDirectiveRefactoring.Analyze(context, usingDirective);
        }