interface IERC20Mintable and IERC20Burnable is needed

[guotie]

🧐 Motivation

I think interface IERC20Mintable and IERC20Burnable is needed.

📝 Details

for example, if I inherit the ERC20PresetMinterPauserUpgradeable as following:

contract MyToken is
    Initializable,
    UUPSUpgradeable,
    ERC20PresetMinterPauserUpgradeable,
    OwnableUpgradeable {
}

If I want call the MyToken method mint, then I need define an interface like this:

interface IMyToken {
    function mint(address to, uint256 amount) external;
}

contract MyToken is
    Initializable,
    UUPSUpgradeable,
    ERC20PresetMinterPauserUpgradeable,
    IMyToken,
    OwnableUpgradeable {
}

then, compile error:

Derived contract must override function "mint". Two or more base classes define function with same name and parameter types.

[guotie]

solidity version is ^0.8.0

[frangio]

If I want call the MyToken method mint, then I need define an interface like this:

You don't need to define an interface. You can just use MyToken.

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