The ::picolibrary::Arm::Cortex::M0PLUS::Delayer blocking delay nullary functor is
defined in the
include/picolibrary/arm/cortex/m0plus/delayer.h/source/picolibrary/arm/cortex/m0plus/delayer.cc](https://github.com/apcountryman/picolibrary-arm-cortex-m0plus/blob/main/source/picolibrary/arm/cortex/m0plus/delayer.cc)
header/source file pair.
::picolibrary::Arm::Cortex::M0PLUS::Delayer supports the following operations:
::picolibrary::Arm::Cortex::M0PLUS::Delayer::operator()() member
function.