# EstimateTokenGasLimitRbDataItem ## Properties Name | Type | Description | Notes ------------ | ------------- | ------------- | ------------- **amount** | **String** | Represents transactions' amount. | **contract** | **String** | Defines the specific token identifier. For Ethereum-based transactions it is the contract. | **contract_type** | **String** | Represents the ERC contract type. It can be ERC20 or ERC721 | **recipient** | **String** | The address which receives this transaction. In UTXO-based protocols like Bitcoin there could be several senders while in account-based protocols like Ethereum there is always only one recipient. | **sender** | **String** | Represents the address which sends this transaction. In UTXO-based protocols like Bitcoin there could be several senders while in account-based protocols like Ethereum there is always only one sender. | [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)