[
  {
    "name": "id",
    "type": "INTEGER",
    "mode": "REQUIRED"
  },
  {
    "name": "string_field",
    "type": "STRING",
    "mode": "NULLABLE"
  },
  {
    "name": "json_field",
    "type": "JSON",
    "mode": "NULLABLE"
  },
  {
    "name": "geography_field",
    "type": "GEOGRAPHY",
    "mode": "NULLABLE"
  },
  {
    "name": "timestamp_field",
    "type": "TIMESTAMP",
    "mode": "NULLABLE"
  },
  {
    "name": "date",
    "type": "DATE",
    "mode": "REQUIRED"
  },
  {
    "name": "record_field",
    "type": "RECORD",
    "mode": "NULLABLE",
    "fields": [
      {
        "name": "inner_field",
        "type": "STRING",
        "mode": "REQUIRED"
      },
      {
        "name": "inner_json",
        "type": "JSON",
        "mode": "REQUIRED"
      }
    ]
  },
  {
    "name": "repeated_string_field",
    "type": "STRING",
    "mode": "REPEATED"
  }
]