# libtmux::StringFieldHandle::contains

- **Module:** libtmux::StringFieldHandle
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/85e8bd603a322dc32bb8b9aeb1a72bcf36945f1d/include/libtmux/filter_expr.hpp#L224
- **Page:** https://libtmux.org/reference/cxx/libtmux-stringfieldhandle-contains/

```
libtmux::StringFieldHandle::contains(operand: std::string_view) -> FilterExpr< Entity >
```