serif::dimensions::Power serif::dimensions::PhysicalQuantity dimensions.hpp std::string_view std::string_view serif::dimensions::Power::identifier identifier serif::dimensions::Power::identifier = "power" Dimension of Power. serif::dimensions::PhysicalQuantity serif::dimensions::Power serif::dimensions::PhysicalQuantity serif::dimensions::Power identifier std::basic_string_view< Char > std::string_view serif::dimensions::Poweridentifier