Help with quickfix provider

[GSri30]

I was going through the quickfix provider code. I'm using xtext 2.26.

I also went through few of the existing implementations like
https://github.com/xtext/xtext-languageserver-example/blob/80df168e906e6a36b937f698418017c47b30cb70/org.xtext.example.mydsl.ide/src/org/xtext/example/mydsl/ide/MyDslIdeQuickfixProvider.java

The problem I'm facing is that, in 2.26, the createTextEdit function is not available. I couldn't find any way to get IModification<EObject> modification, to pass it as second argument for .accept function.

The following is the code I have

public class CustomQuickFixProvider extends AbstractDeclarativeIdeQuickfixProvider {
    
    @QuickFix(TSLValidator.INVALID_GUID)
    public void textFixLowerCaseName(DiagnosticResolutionAcceptor acceptor) {
        modification = ?
        acceptor.accept("Capitalize Name", modification
            
        );
    }
}

[cdietrich]

please check the history xtext/xtext-languageserver-example@835129f (or older) also check package.json