# libtmux::CommandRequest::reserve

- **Module:** libtmux::CommandRequest
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/393d4b0ad666f18a6581f1eb281741a75a7503f0/include/libtmux/command.hpp#L176
- **Page:** https://libtmux.org/en/cxx/latest/reference/libtmux-commandrequest-reserve/

```
libtmux::CommandRequest::reserve(size: std::size_t) -> void
```