const chars is unused (U1000)

const charIdxBits is unused (U1000)

const charIdxMax is unused (U1000)

const charIdxMask is unused (U1000)

var randSrc is unused (U1000)

func randString is unused (U1000)

"io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details. (SA1019)