{
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        "testSetIds": [
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{
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    "code": "INVALID_ARGUMENT",
    "message": "Invalid request body",
    "details": [
      {
        "field": "display_name",
        "description": "display_name must be between 1 and 255 characters"
      }
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}

{
  "error": {
    "code": "UNAUTHENTICATED",
    "message": "Authentication failed",
    "details": [
      {
        "field": "X-API-Key",
        "description": "Invalid or missing API key"
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{
  "error": {
    "code": "INVALID_ARGUMENT",
    "message": "Invalid request parameter",
    "details": [
      {
        "field": "<string>",
        "description": "<string>"
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}

{
  "error": {
    "code": "INTERNAL",
    "message": "Internal server error",
    "details": [
      {
        "description": "An unexpected error occurred"
      }
    ]
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}