I'm trying to write a Custom Helper, according to https://devdocs.magento.com/mftf/docs/custom-helpers.html To perform Tax Calculations and return a Fee. According to documentation you can return a value and it would be stored in the stepKey
Does anybody knows how to do this, there's a lack of documentation, I checked Magento vendor folder in search of examples, and I didn't found any.
I'm trying to write a Custom Helper, according to https://devdocs.magento.com/mftf/docs/custom-helpers.html To perform Tax Calculations and return a Fee. According to documentation you can return a value and it would be stored in the stepKey
Does anybody knows how to do this, there's a lack of documentation, I checked Magento vendor folder in search of examples, and I didn't found any.
Thank you!
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Expected result
Actual result