private IEnumerable <string> GetPropertyDoxygenComments(BasePropertyDeclarationSyntax declaration)
        {
            var throwStatmentSyntaxs = declaration.DescendantNodes().OfType <ThrowStatementSyntax>();
            var exceptionComments    = GetExceptionComments(throwStatmentSyntaxs);

            return(summaryComments
                   .Concat(exceptionComments));
        }