public override SyntaxNode VisitFieldDeclaration(FieldDeclarationSyntax fieldSyntax)
{
return fieldSyntax.ReplaceTokens(fieldSyntax.Declaration.Variables.Select(f => f.Identifier),
(t1, t2) => SyntaxFactory.Identifier(t1.LeadingTrivia, ToCamelCase(t1.ValueText), t1.TrailingTrivia));
}