mutation addEvidenceToTestRun ($testrun_id: String!, $data: String!, $filename: String!, $content_type: String!) {
    addEvidenceToTestRun(
            id: $testrun_id,
            evidence: [
                {
                data: $data,
                filename: $filename,
                mimeType: $content_type
                }
            ]
        ){
            addedEvidence
            warnings
        }
}
