# BillingAttachItem ## Fields | Field | Type | Required | Description | | ------------------------------------------------------------------------------ | ------------------------------------------------------------------------------ | ------------------------------------------------------------------------------ | ------------------------------------------------------------------------------ | | `feature_id` | *str* | :heavy_check_mark: | N/A | | `included` | *Optional[float]* | :heavy_minus_sign: | N/A | | `unlimited` | *Optional[bool]* | :heavy_minus_sign: | N/A | | `reset` | [Optional[models.BillingAttachReset]](../models/billingattachreset.md) | :heavy_minus_sign: | N/A | | `price` | [Optional[models.BillingAttachItemPrice]](../models/billingattachitemprice.md) | :heavy_minus_sign: | N/A | | `proration` | [Optional[models.BillingAttachProration]](../models/billingattachproration.md) | :heavy_minus_sign: | N/A | | `rollover` | [Optional[models.BillingAttachRollover]](../models/billingattachrollover.md) | :heavy_minus_sign: | N/A |