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pragma solidity ^0.7.0;
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contract ERC20 {
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string public constant name = "";
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string public constant symbol = "";
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uint8 public constant decimals = 0;
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/*
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function totalSupply() public constant returns (uint);
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function balanceOf(address tokenOwner) public constant returns (uint balance);
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function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
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function transfer(address to, uint tokens) public returns (bool success);
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function approve(address spender, uint tokens) public returns (bool success);
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function transferFrom(address from, address to, uint tokens) public returns (bool success);
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event Transfer(address indexed from, address indexed to, uint tokens);
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event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
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*/
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}
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