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library WithModifier {
modifier mod() { require(msg.value > 10 ether); _; }
function withMod(uint self) mod() internal view { require(self > 0); }
}
contract Test {
using WithModifier for *;
function f(uint _value) public payable {
_value.withMod();
WithModifier.withMod(_value);
}
}
// ----
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