Error record is undefined when use toggleCustomInlineStyle on an entity (RawDraftEntity)

Hey,
I would like to know if it is possible to use the toggleCustomInlineStyle method on an entity (RawDraftEntity) ?
For example, I have an html code with custom tags
<var data-name="$test">

I use htmlToDraft method for convert this code with a customChunkRenderer

private static customChunkRenderer(nodeName: string, node: HTMLElement): RawDraftEntity | undefined {
        let draftEntity: RawDraftEntity | undefined;
        if (nodeName === 'var') {
            const data = {
                name: node.dataset.name
            };
            draftEntity = {
                type: VariableType,
                mutability: 'IMMUTABLE',
                data: data
            };
        }
        return draftEntity;
    }

When I want to change the text size of my item, with the toggleCustomInlineStyle method, I get the following error message

TypeError: record is undefined
removeStyle
.../node_modules/draft-js/lib/CharacterMetadata.js:56

  53 | };
  54 | 
  55 | CharacterMetadata.removeStyle = function removeStyle(record, style) {
> 56 |   var withoutStyle = record.set('style', record.getStyle().remove(style));
     | ^  57 |   return CharacterMetadata.create(withoutStyle);
  58 | };
  59 | 

Then I want to retrieve the HTML code with the style applied to my item, with draftToHtml and my method customEntityTransform

private static customEntityTransform(...args): any {
        const entity = args[0] as RawDraftEntity;
        let value: string | undefined;
        if (entity.type === VariableType) {
            value = '<var data-name="' + entity.data.name + '">';
        }

        return value;
    }

Thank you very much

Start by reproducing the failure through htmlToDraft with customChunkRenderer, then apply toggleCustomInlineStyle to the resulting RawDraftEntity and inspect the CharacterMetadata.removeStyle stack trace. Review how draftToHtml and customEntityTransform handle the styled entity. Done means establishing whether entity styling is supported and documenting or validating the resulting behavior.