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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_type(name, library):
 """ Gets object type by its name and library where it is defined. :param name: an object type name. :param library: a library where the type is defined :return: the object type or null is the type wasn't found. """

        if name == None:
            raise Exception("Class name cannot be null")
        if library == None:
            raise Exception("Module name cannot be null")

        try:
            module = importlib.import_module(library)
            return getattr(module, name)
        except:
           return None