| Name | Type | Description | Notes |
|---|---|---|---|
| request_type | EstimateFeeRequestType | ||
| address | String | The destination address. | [optional] |
| value | String | The transfer amount. For example, if you trade 1.5 ETH, then the value is `1.5`. | [optional] |
| calldata | String | The data that is used to invoke a specific function or method within the specified contract at the destination address. | [optional] |