fn sign_cached<FEN: FoundryEvmNetwork>(
state: &mut Cheatcodes<FEN>,
private_key: &U256,
digest: &B256,
) -> Result<Signature>fn sign_cached<FEN: FoundryEvmNetwork>(
state: &mut Cheatcodes<FEN>,
private_key: &U256,
digest: &B256,
) -> Result<Signature>