code: def getThirdPartyLibDefinitions(self, libs):
  		
  		platformDefaults = True
  		if libs[0] == '--nodefaults':
  			platformDefaults = False
  			libs = libs[1:]
  		
  		details = self.getThirdpartyLibs(libs, includePlatformDefaults=platformDefaults)
  		return details.getPreprocessorDefinitions(self.getEngineRoot(), delimiter='\n')
docs: Retrieves the list of preprocessor definitions for building against the Unreal-bundled versions of the specified third-party libraries