Source code for zero_ex.contract_wrappers.weth9

"""Generated wrapper for WETH9 Solidity contract."""

# pylint: disable=too-many-arguments

import json
from typing import (  # pylint: disable=unused-import
    Any,
    List,
    Optional,
    Tuple,
    Union,
)

from eth_utils import to_checksum_address
from mypy_extensions import TypedDict  # pylint: disable=unused-import
from hexbytes import HexBytes
from web3 import Web3
from web3.contract import ContractFunction
from web3.datastructures import AttributeDict
from web3.providers.base import BaseProvider

from zero_ex.contract_wrappers.bases import ContractMethod, Validator
from zero_ex.contract_wrappers.tx_params import TxParams


# Try to import a custom validator class definition; if there isn't one,
# declare one that we can instantiate for the default argument to the
# constructor for WETH9 below.
try:
    # both mypy and pylint complain about what we're doing here, but this
    # works just fine, so their messages have been disabled here.
    from . import (  # type: ignore # pylint: disable=import-self
        WETH9Validator,
    )
except ImportError:

[docs] class WETH9Validator( # type: ignore Validator ): """No-op input validator."""
try: from .middleware import MIDDLEWARE # type: ignore except ImportError: pass
[docs]class NameMethod(ContractMethod): """Various interfaces to the name method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address) self._underlying_method = contract_function
[docs] def call(self, tx_params: Optional[TxParams] = None) -> str: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters """ tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method().call(tx_params.as_dict()) return str(returned)
[docs] def estimate_gas(self, tx_params: Optional[TxParams] = None) -> int: """Estimate gas consumption of method call.""" tx_params = super().normalize_tx_params(tx_params) return self._underlying_method().estimateGas(tx_params.as_dict())
[docs]class ApproveMethod(ContractMethod): """Various interfaces to the approve method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, validator: Validator = None, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address, validator) self._underlying_method = contract_function
[docs] def validate_and_normalize_inputs(self, guy: str, wad: int): """Validate the inputs to the approve method.""" self.validator.assert_valid( method_name="approve", parameter_name="guy", argument_value=guy, ) guy = self.validate_and_checksum_address(guy) self.validator.assert_valid( method_name="approve", parameter_name="wad", argument_value=wad, ) # safeguard against fractional inputs wad = int(wad) return (guy, wad)
[docs] def call( self, guy: str, wad: int, tx_params: Optional[TxParams] = None ) -> bool: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters :returns: the return value of the underlying method. """ (guy, wad) = self.validate_and_normalize_inputs(guy, wad) tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method(guy, wad).call(tx_params.as_dict()) return bool(returned)
[docs] def send_transaction( self, guy: str, wad: int, tx_params: Optional[TxParams] = None ) -> Union[HexBytes, bytes]: """Execute underlying contract method via eth_sendTransaction. :param tx_params: transaction parameters """ (guy, wad) = self.validate_and_normalize_inputs(guy, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(guy, wad).transact(tx_params.as_dict())
[docs] def build_transaction( self, guy: str, wad: int, tx_params: Optional[TxParams] = None ) -> dict: """Construct calldata to be used as input to the method.""" (guy, wad) = self.validate_and_normalize_inputs(guy, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(guy, wad).buildTransaction( tx_params.as_dict() )
[docs] def estimate_gas( self, guy: str, wad: int, tx_params: Optional[TxParams] = None ) -> int: """Estimate gas consumption of method call.""" (guy, wad) = self.validate_and_normalize_inputs(guy, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(guy, wad).estimateGas( tx_params.as_dict() )
[docs]class TotalSupplyMethod(ContractMethod): """Various interfaces to the totalSupply method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address) self._underlying_method = contract_function
[docs] def call(self, tx_params: Optional[TxParams] = None) -> int: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters """ tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method().call(tx_params.as_dict()) return int(returned)
[docs] def estimate_gas(self, tx_params: Optional[TxParams] = None) -> int: """Estimate gas consumption of method call.""" tx_params = super().normalize_tx_params(tx_params) return self._underlying_method().estimateGas(tx_params.as_dict())
[docs]class TransferFromMethod(ContractMethod): """Various interfaces to the transferFrom method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, validator: Validator = None, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address, validator) self._underlying_method = contract_function
[docs] def validate_and_normalize_inputs(self, src: str, dst: str, wad: int): """Validate the inputs to the transferFrom method.""" self.validator.assert_valid( method_name="transferFrom", parameter_name="src", argument_value=src, ) src = self.validate_and_checksum_address(src) self.validator.assert_valid( method_name="transferFrom", parameter_name="dst", argument_value=dst, ) dst = self.validate_and_checksum_address(dst) self.validator.assert_valid( method_name="transferFrom", parameter_name="wad", argument_value=wad, ) # safeguard against fractional inputs wad = int(wad) return (src, dst, wad)
[docs] def call( self, src: str, dst: str, wad: int, tx_params: Optional[TxParams] = None, ) -> bool: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters :returns: the return value of the underlying method. """ (src, dst, wad) = self.validate_and_normalize_inputs(src, dst, wad) tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method(src, dst, wad).call( tx_params.as_dict() ) return bool(returned)
[docs] def send_transaction( self, src: str, dst: str, wad: int, tx_params: Optional[TxParams] = None, ) -> Union[HexBytes, bytes]: """Execute underlying contract method via eth_sendTransaction. :param tx_params: transaction parameters """ (src, dst, wad) = self.validate_and_normalize_inputs(src, dst, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(src, dst, wad).transact( tx_params.as_dict() )
[docs] def build_transaction( self, src: str, dst: str, wad: int, tx_params: Optional[TxParams] = None, ) -> dict: """Construct calldata to be used as input to the method.""" (src, dst, wad) = self.validate_and_normalize_inputs(src, dst, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(src, dst, wad).buildTransaction( tx_params.as_dict() )
[docs] def estimate_gas( self, src: str, dst: str, wad: int, tx_params: Optional[TxParams] = None, ) -> int: """Estimate gas consumption of method call.""" (src, dst, wad) = self.validate_and_normalize_inputs(src, dst, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(src, dst, wad).estimateGas( tx_params.as_dict() )
[docs]class WithdrawMethod(ContractMethod): """Various interfaces to the withdraw method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, validator: Validator = None, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address, validator) self._underlying_method = contract_function
[docs] def validate_and_normalize_inputs(self, wad: int): """Validate the inputs to the withdraw method.""" self.validator.assert_valid( method_name="withdraw", parameter_name="wad", argument_value=wad, ) # safeguard against fractional inputs wad = int(wad) return wad
[docs] def call(self, wad: int, tx_params: Optional[TxParams] = None) -> None: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters :returns: the return value of the underlying method. """ (wad) = self.validate_and_normalize_inputs(wad) tx_params = super().normalize_tx_params(tx_params) self._underlying_method(wad).call(tx_params.as_dict())
[docs] def send_transaction( self, wad: int, tx_params: Optional[TxParams] = None ) -> Union[HexBytes, bytes]: """Execute underlying contract method via eth_sendTransaction. :param tx_params: transaction parameters """ (wad) = self.validate_and_normalize_inputs(wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(wad).transact(tx_params.as_dict())
[docs] def build_transaction( self, wad: int, tx_params: Optional[TxParams] = None ) -> dict: """Construct calldata to be used as input to the method.""" (wad) = self.validate_and_normalize_inputs(wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(wad).buildTransaction( tx_params.as_dict() )
[docs] def estimate_gas( self, wad: int, tx_params: Optional[TxParams] = None ) -> int: """Estimate gas consumption of method call.""" (wad) = self.validate_and_normalize_inputs(wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(wad).estimateGas(tx_params.as_dict())
[docs]class DecimalsMethod(ContractMethod): """Various interfaces to the decimals method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address) self._underlying_method = contract_function
[docs] def call(self, tx_params: Optional[TxParams] = None) -> int: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters """ tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method().call(tx_params.as_dict()) return int(returned)
[docs] def estimate_gas(self, tx_params: Optional[TxParams] = None) -> int: """Estimate gas consumption of method call.""" tx_params = super().normalize_tx_params(tx_params) return self._underlying_method().estimateGas(tx_params.as_dict())
[docs]class BalanceOfMethod(ContractMethod): """Various interfaces to the balanceOf method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, validator: Validator = None, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address, validator) self._underlying_method = contract_function
[docs] def validate_and_normalize_inputs(self, index_0: str): """Validate the inputs to the balanceOf method.""" self.validator.assert_valid( method_name="balanceOf", parameter_name="index_0", argument_value=index_0, ) index_0 = self.validate_and_checksum_address(index_0) return index_0
[docs] def call(self, index_0: str, tx_params: Optional[TxParams] = None) -> int: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters """ (index_0) = self.validate_and_normalize_inputs(index_0) tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method(index_0).call(tx_params.as_dict()) return int(returned)
[docs] def estimate_gas( self, index_0: str, tx_params: Optional[TxParams] = None ) -> int: """Estimate gas consumption of method call.""" (index_0) = self.validate_and_normalize_inputs(index_0) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(index_0).estimateGas( tx_params.as_dict() )
[docs]class SymbolMethod(ContractMethod): """Various interfaces to the symbol method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address) self._underlying_method = contract_function
[docs] def call(self, tx_params: Optional[TxParams] = None) -> str: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters """ tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method().call(tx_params.as_dict()) return str(returned)
[docs] def estimate_gas(self, tx_params: Optional[TxParams] = None) -> int: """Estimate gas consumption of method call.""" tx_params = super().normalize_tx_params(tx_params) return self._underlying_method().estimateGas(tx_params.as_dict())
[docs]class TransferMethod(ContractMethod): """Various interfaces to the transfer method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, validator: Validator = None, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address, validator) self._underlying_method = contract_function
[docs] def validate_and_normalize_inputs(self, dst: str, wad: int): """Validate the inputs to the transfer method.""" self.validator.assert_valid( method_name="transfer", parameter_name="dst", argument_value=dst, ) dst = self.validate_and_checksum_address(dst) self.validator.assert_valid( method_name="transfer", parameter_name="wad", argument_value=wad, ) # safeguard against fractional inputs wad = int(wad) return (dst, wad)
[docs] def call( self, dst: str, wad: int, tx_params: Optional[TxParams] = None ) -> bool: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters :returns: the return value of the underlying method. """ (dst, wad) = self.validate_and_normalize_inputs(dst, wad) tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method(dst, wad).call(tx_params.as_dict()) return bool(returned)
[docs] def send_transaction( self, dst: str, wad: int, tx_params: Optional[TxParams] = None ) -> Union[HexBytes, bytes]: """Execute underlying contract method via eth_sendTransaction. :param tx_params: transaction parameters """ (dst, wad) = self.validate_and_normalize_inputs(dst, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(dst, wad).transact(tx_params.as_dict())
[docs] def build_transaction( self, dst: str, wad: int, tx_params: Optional[TxParams] = None ) -> dict: """Construct calldata to be used as input to the method.""" (dst, wad) = self.validate_and_normalize_inputs(dst, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(dst, wad).buildTransaction( tx_params.as_dict() )
[docs] def estimate_gas( self, dst: str, wad: int, tx_params: Optional[TxParams] = None ) -> int: """Estimate gas consumption of method call.""" (dst, wad) = self.validate_and_normalize_inputs(dst, wad) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(dst, wad).estimateGas( tx_params.as_dict() )
[docs]class DepositMethod(ContractMethod): """Various interfaces to the deposit method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address) self._underlying_method = contract_function
[docs] def call(self, tx_params: Optional[TxParams] = None) -> None: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters :returns: the return value of the underlying method. """ tx_params = super().normalize_tx_params(tx_params) self._underlying_method().call(tx_params.as_dict())
[docs] def send_transaction( self, tx_params: Optional[TxParams] = None ) -> Union[HexBytes, bytes]: """Execute underlying contract method via eth_sendTransaction. :param tx_params: transaction parameters """ tx_params = super().normalize_tx_params(tx_params) return self._underlying_method().transact(tx_params.as_dict())
[docs] def build_transaction(self, tx_params: Optional[TxParams] = None) -> dict: """Construct calldata to be used as input to the method.""" tx_params = super().normalize_tx_params(tx_params) return self._underlying_method().buildTransaction(tx_params.as_dict())
[docs] def estimate_gas(self, tx_params: Optional[TxParams] = None) -> int: """Estimate gas consumption of method call.""" tx_params = super().normalize_tx_params(tx_params) return self._underlying_method().estimateGas(tx_params.as_dict())
[docs]class AllowanceMethod(ContractMethod): """Various interfaces to the allowance method."""
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, contract_function: ContractFunction, validator: Validator = None, ): """Persist instance data.""" super().__init__(web3_or_provider, contract_address, validator) self._underlying_method = contract_function
[docs] def validate_and_normalize_inputs(self, index_0: str, index_1: str): """Validate the inputs to the allowance method.""" self.validator.assert_valid( method_name="allowance", parameter_name="index_0", argument_value=index_0, ) index_0 = self.validate_and_checksum_address(index_0) self.validator.assert_valid( method_name="allowance", parameter_name="index_1", argument_value=index_1, ) index_1 = self.validate_and_checksum_address(index_1) return (index_0, index_1)
[docs] def call( self, index_0: str, index_1: str, tx_params: Optional[TxParams] = None ) -> int: """Execute underlying contract method via eth_call. :param tx_params: transaction parameters """ (index_0, index_1) = self.validate_and_normalize_inputs( index_0, index_1 ) tx_params = super().normalize_tx_params(tx_params) returned = self._underlying_method(index_0, index_1).call( tx_params.as_dict() ) return int(returned)
[docs] def estimate_gas( self, index_0: str, index_1: str, tx_params: Optional[TxParams] = None ) -> int: """Estimate gas consumption of method call.""" (index_0, index_1) = self.validate_and_normalize_inputs( index_0, index_1 ) tx_params = super().normalize_tx_params(tx_params) return self._underlying_method(index_0, index_1).estimateGas( tx_params.as_dict() )
# pylint: disable=too-many-public-methods,too-many-instance-attributes
[docs]class WETH9: """Wrapper class for WETH9 Solidity contract.""" name: NameMethod """Constructor-initialized instance of :class:`NameMethod`. """ approve: ApproveMethod """Constructor-initialized instance of :class:`ApproveMethod`. """ total_supply: TotalSupplyMethod """Constructor-initialized instance of :class:`TotalSupplyMethod`. """ transfer_from: TransferFromMethod """Constructor-initialized instance of :class:`TransferFromMethod`. """ withdraw: WithdrawMethod """Constructor-initialized instance of :class:`WithdrawMethod`. """ decimals: DecimalsMethod """Constructor-initialized instance of :class:`DecimalsMethod`. """ balance_of: BalanceOfMethod """Constructor-initialized instance of :class:`BalanceOfMethod`. """ symbol: SymbolMethod """Constructor-initialized instance of :class:`SymbolMethod`. """ transfer: TransferMethod """Constructor-initialized instance of :class:`TransferMethod`. """ deposit: DepositMethod """Constructor-initialized instance of :class:`DepositMethod`. """ allowance: AllowanceMethod """Constructor-initialized instance of :class:`AllowanceMethod`. """
[docs] def __init__( self, web3_or_provider: Union[Web3, BaseProvider], contract_address: str, validator: WETH9Validator = None, ): """Get an instance of wrapper for smart contract. :param web3_or_provider: Either an instance of `web3.Web3`:code: or `web3.providers.base.BaseProvider`:code: :param contract_address: where the contract has been deployed :param validator: for validation of method inputs. """ # pylint: disable=too-many-statements self.contract_address = contract_address if not validator: validator = WETH9Validator(web3_or_provider, contract_address) web3 = None if isinstance(web3_or_provider, BaseProvider): web3 = Web3(web3_or_provider) elif isinstance(web3_or_provider, Web3): web3 = web3_or_provider else: raise TypeError( "Expected parameter 'web3_or_provider' to be an instance of either" + " Web3 or BaseProvider" ) # if any middleware was imported, inject it try: MIDDLEWARE except NameError: pass else: try: for middleware in MIDDLEWARE: web3.middleware_onion.inject( middleware["function"], layer=middleware["layer"], ) except ValueError as value_error: if value_error.args == ( "You can't add the same un-named instance twice", ): pass self._web3_eth = web3.eth functions = self._web3_eth.contract( address=to_checksum_address(contract_address), abi=WETH9.abi() ).functions self.name = NameMethod( web3_or_provider, contract_address, functions.name ) self.approve = ApproveMethod( web3_or_provider, contract_address, functions.approve, validator ) self.total_supply = TotalSupplyMethod( web3_or_provider, contract_address, functions.totalSupply ) self.transfer_from = TransferFromMethod( web3_or_provider, contract_address, functions.transferFrom, validator, ) self.withdraw = WithdrawMethod( web3_or_provider, contract_address, functions.withdraw, validator ) self.decimals = DecimalsMethod( web3_or_provider, contract_address, functions.decimals ) self.balance_of = BalanceOfMethod( web3_or_provider, contract_address, functions.balanceOf, validator ) self.symbol = SymbolMethod( web3_or_provider, contract_address, functions.symbol ) self.transfer = TransferMethod( web3_or_provider, contract_address, functions.transfer, validator ) self.deposit = DepositMethod( web3_or_provider, contract_address, functions.deposit ) self.allowance = AllowanceMethod( web3_or_provider, contract_address, functions.allowance, validator )
[docs] def get_approval_event( self, tx_hash: Union[HexBytes, bytes] ) -> Tuple[AttributeDict]: """Get log entry for Approval event. :param tx_hash: hash of transaction emitting Approval event """ tx_receipt = self._web3_eth.getTransactionReceipt(tx_hash) return ( self._web3_eth.contract( address=to_checksum_address(self.contract_address), abi=WETH9.abi(), ) .events.Approval() .processReceipt(tx_receipt) )
[docs] def get_transfer_event( self, tx_hash: Union[HexBytes, bytes] ) -> Tuple[AttributeDict]: """Get log entry for Transfer event. :param tx_hash: hash of transaction emitting Transfer event """ tx_receipt = self._web3_eth.getTransactionReceipt(tx_hash) return ( self._web3_eth.contract( address=to_checksum_address(self.contract_address), abi=WETH9.abi(), ) .events.Transfer() .processReceipt(tx_receipt) )
[docs] def get_deposit_event( self, tx_hash: Union[HexBytes, bytes] ) -> Tuple[AttributeDict]: """Get log entry for Deposit event. :param tx_hash: hash of transaction emitting Deposit event """ tx_receipt = self._web3_eth.getTransactionReceipt(tx_hash) return ( self._web3_eth.contract( address=to_checksum_address(self.contract_address), abi=WETH9.abi(), ) .events.Deposit() .processReceipt(tx_receipt) )
[docs] def get_withdrawal_event( self, tx_hash: Union[HexBytes, bytes] ) -> Tuple[AttributeDict]: """Get log entry for Withdrawal event. :param tx_hash: hash of transaction emitting Withdrawal event """ tx_receipt = self._web3_eth.getTransactionReceipt(tx_hash) return ( self._web3_eth.contract( address=to_checksum_address(self.contract_address), abi=WETH9.abi(), ) .events.Withdrawal() .processReceipt(tx_receipt) )
[docs] @staticmethod def abi(): """Return the ABI to the underlying contract.""" return json.loads( '[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"guy","type":"address"},{"name":"wad","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"src","type":"address"},{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"wad","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"index_0","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"index_0","type":"address"},{"name":"index_1","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Withdrawal","type":"event"}]' # noqa: E501 (line-too-long) )
# pylint: disable=too-many-lines