# tmux.CopyModeLineNumbers.Valid

- **Module:** tmux.CopyModeLineNumbers
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/option_generated.go#L136
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-copymodelinenumbers-valid/

```
tmux.CopyModeLineNumbers.Valid() -> bool
```

Valid reports whether v belongs to the supported tmux-version union.