mutation modifyTestSteps ($jql_query: String!) {
    updateTestStep(
        stepId: "{{T1_NEWSTEP_ID}}",
        step: {
            action: "example step5x",
            data: "example data5x"
            result: "example result5x",
            attachments:
                {
                    add: {
                        data:"ZHVtbXkgY29udGVudA==",
                        filename:"dummy.txt",
                        mimeType:"text/plain"
                    }
                }

        }
    ) {
        addedAttachments
        warnings
    }
}
