| Name | Type | Description | Notes |
|---|---|---|---|
| size | int | New order size, including filled part. - If new size is less than or equal to filled size, the order will be cancelled. - Order side must be identical to the original one. - Close order size cannot be changed. - For reduce only orders, increasing size may leads to other reduce only orders being cancelled. - If price is not changed, decreasing size will not change its precedence in order book, while increasing will move it to the last at current price. | [optional] |
| price | str | New order price. New price cannot take any orders | [optional] |