INFO:Detectors: ContractWithFunctionNotCalled.funcNotCalled3() (tests/external_function.sol#13-15) should be declared external ContractWithFunctionNotCalled.funcNotCalled2() (tests/external_function.sol#17-19) should be declared external ContractWithFunctionNotCalled.funcNotCalled() (tests/external_function.sol#21-23) should be declared external ContractWithFunctionNotCalled2.funcNotCalled() (tests/external_function.sol#32-39) should be declared external FunctionParameterWrite.parameter_read_ok_for_external(uint256) (tests/external_function.sol#74-76) should be declared external Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#public-function-that-could-be-declared-as-external INFO:Slither:tests/external_function.sol analyzed (6 contracts), 5 result(s) found