solidity/test/libsolidity/semanticTests/intheritance/inherited_function.sol

contract A {
    function f() internal virtual returns (uint256) {
        return 1;
    }
}


contract B is A {
    function f() internal override returns (uint256) {
        return 2;
    }

    function g() public returns (uint256) {
        return A.f();
    }
}

// ----
// g() -> 1