| 12345678910111213141516171819202122232425 | import importlibimport loggingdef load_class(name: str):    """    load class by name    """    name_components = name.split(".")    if not name_components:        logging.error("Invalid class name: %s", name)        return    module_name = ".".join(name_components[:-1])    class_name = name_components[-1]    try:        module = importlib.import_module(module_name)        a_class = getattr(module, class_name)        logging.info("load class: %s", a_class)        return a_class    except ImportError:        logging.error("Module not found: %s", name)    except AttributeError:        logging.error("Class not found: %s", name)
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