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# @version 0.3.1
"""
@title Liquidity Gauge
@author Curve Finance
@license MIT
@notice Implementation contract for use with Curve Factory
"""
from vyper.interfaces import ERC20
implements: ERC20
interface CRV20:
    def future_epoch_time_write() -> uint256: nonpayable
    def rate() -> uint256: view
interface Controller:
    def checkpoint_gauge(addr: address): nonpayable
    def gauge_relative_weight(addr: address, time: uint256) -> uint256: view
interface ERC20Extended:
    def symbol() -> String[32]: view
interface ERC1271:
    def isValidSignature(_hash: bytes32, _signature: Bytes[65]) -> bytes32: view
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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