in transcriptTransformationScript.js [16:22]
function removeSchemaAttribute(currEntry) {
if (currEntry['type'] === 'message') {
if (currEntry.hasOwnProperty("attachments") && currEntry["attachments"][0].hasOwnProperty("content") && currEntry["attachments"][0]["content"].hasOwnProperty("$schema")) {
delete currEntry["attachments"][0]["content"]["$schema"];
}
}
}