> db.createCollection(
   "stocks",
   {
      timeseries: {
         timeField: "date",
         metaField: "ticker",
         granularity: "seconds"
      }
   })
.... 
// Oplog entries
{
    op: 'c',
    ns: 'test.$cmd',
    ui: UUID('e4dc4a7a-395c-4c7e-8aa5-3875362225d0'),
    o: {
      createIndexes: 'system.buckets.stocks',
      v: 2,
      name: 'ticker_1_date_1',
      key: { meta: 1, 'control.min.date': 1, 'control.max.date': 1 }
    },
    ts: Timestamp({ t: 1750971747, i: 3 }),
    t: Long('1'),
    v: Long('2'),
    wall: ISODate('2025-06-26T21:02:27.813Z')
  },
  {
    op: 'c',
    ns: 'test.$cmd',
    ui: UUID('e4dc4a7a-395c-4c7e-8aa5-3875362225d0'),
    o: {
      create: 'system.buckets.stocks',
      validator: {
        '$jsonSchema': {
          bsonType: 'object',
          required: [ '_id', 'control', 'data' ],
          properties: {
            _id: { bsonType: 'objectId' },
            control: {
              bsonType: 'object',
              required: [ 'version', 'min', 'max' ],
              properties: {
                version: { bsonType: 'number' },
                min: {
                  bsonType: 'object',
                  required: [ 'date' ],
                  properties: { date: { bsonType: 'date' } }
                },
                max: {
                  bsonType: 'object',
                  required: [ 'date' ],
                  properties: { date: { bsonType: 'date' } }
                },
                closed: { bsonType: 'bool' },
                count: { bsonType: 'number', minimum: 1 }
              },
              additionalProperties: false
            },
            data: { bsonType: 'object' },
            meta: {}
          },
          additionalProperties: false
        }
      },
      clusteredIndex: true,
      timeseries: {
        timeField: 'date',
        metaField: 'ticker',
        granularity: 'seconds',
        bucketMaxSpanSeconds: 3600
      }
    },
    ts: Timestamp({ t: 1750971747, i: 2 }),
    t: Long('1'),
    v: Long('2'),
    wall: ISODate('2025-06-26T21:02:27.813Z')
  },