| Name | Type | Description | Notes |
|---|---|---|---|
| ending_unit | float | Limit on the number of units for which the tier is effective. | [optional] |
| price | float | Price or per-unit price of the tier, depending on the value of the `priceFormat` field. | |
| price_format | str | Specifies whether the tier has a fixed price or a per-unit price. | [optional] |
| starting_unit | float | Number of units at which the tier becomes effective. | |
| tier | int | Index of the tier in the charge. |