| Name | Type | Description | Notes |
|---|---|---|---|
| sub_account | str | Sub account user ID | |
| sub_account_type | str | 操作的子账号交易账户， spot - 现货账户， futures - 永续合约账户， delivery - 交割合约账户, options - 期权账户 | [optional] [default to 'spot'] |
| currency | str | Transfer currency name | |
| amount | str | Transfer amount | |
| direction | str | Transfer direction. to - transfer into sub account; from - transfer out from sub account | |
| client_order_id | str | The custom ID provided by the customer serves as a safeguard against duplicate transfers. It can be a combination of letters (case-sensitive), numbers, hyphens '-', and underscores '_', with a length ranging from 1 to 64 characters. | [optional] |