Tests/RunCMake/CXXModules/FileSetModuleHeaderUnitsInterfaceImported.cmake - third_party/github.com/Kitware/CMake - Git at Google

 add_library(module-header INTERFACE IMPORTED)
 target_sources(module-header
   INTERFACE
     FILE_SET fs TYPE CXX_MODULE_HEADER_UNITS FILES
       sources/module-header.h)
 target_compile_features(module-header
   INTERFACE
     cxx_std_20)
	add_library(module-header INTERFACE IMPORTED)
	target_sources(module-header
	INTERFACE
	FILE_SET fs TYPE CXX_MODULE_HEADER_UNITS FILES
	sources/module-header.h)
	target_compile_features(module-header
	INTERFACE
	cxx_std_20)