[
  {
    "name": "build_number",
    "type": "INTEGER",
    "mode": "NULLABLE"
  },
  {
    "name": "timestamp",
    "type": "TIMESTAMP",
    "mode": "NULLABLE"
  },
  {
    "name": "matrix",
    "type": "RECORD",
    "mode": "REPEATED",
    "fields": [
      {
        "name": "name",
        "type": "STRING",
        "mode": "NULLABLE"
      },
      {
        "name": "duration",
        "type": "FLOAT",
        "mode": "NULLABLE"
      },
      {
        "name": "pass_count",
        "type": "INTEGER",
        "mode": "NULLABLE"
      },
      {
        "name": "failure_count",
        "type": "INTEGER",
        "mode": "NULLABLE"
      },
      {
        "name": "error",
        "type": "RECORD",
        "mode": "REPEATED",
        "fields": [
          {
            "name": "description",
            "type": "STRING",
            "mode": "NULLABLE"
          },
          {
            "name": "count",
            "type": "INTEGER",
            "mode": "NULLABLE"
          }
        ]
      }
    ]
  }
]  
