Return a const reference to the value of the option having the specified name. Template parameter TYPE must be one of the supported types (see {Supported Types}). The behavior is undefined unless this handle object has a name option (i.e., 0 <= index(name)), the option has (template parameter) TYPE (i.e., OptionType::TypeToEnum<TYPE>::value == type(name)), and the option has a value (i.e., false == value(name).isNull()).
Declared in <balcl_commandline.h>
template<class TYPE>
TYPE const&
the(std::string_view const& name) const;