# core/timer.h
## `Timer::Timer`
`Timer()`
## `Timer::elapsed`
`Time elapsed() const noexcept`
## `Timer::init`
`void init() noexcept`
## `Timer::now`
`Time now() const noexcept`
## `Timer::start`
`Time start() const noexcept`
## `dofs::init`
`void init() noexcept{`