# `AggregationsTimeSeriesAggregation` [interface-AggregationsTimeSeriesAggregation] | Name | Type | Description | | - | - | - | | `keyed` | boolean | Set to `true` to associate a unique string key with each bucket and returns the ranges as a hash rather than an array. | | `size` | [integer](./integer.md) | The maximum number of results to return. |