import omegaconf # Load a simple configuration from a dictionary config = omegaconf.from_dict({"foo": 42, "bar": "hello"}) # Load a hierarchical configuration from a nested dictionary config = omegaconf.from_dict({"foo": {"bar": 123, "baz": "hello"}}) # Load a typed configuration from a dictionary with explicit type annotations from omegaconf import DictConfig config: DictConfig = omegaconf.from_dict({"foo": {"bar": 123, "baz": "hello"}})In each of these examples, `from_dict` takes a dictionary representing the configuration data and returns an OmegaConf configuration object. The first example simply loads a flat configuration with two keys, "foo" and "bar". The second example loads a nested configuration with a "foo" key that contains a dictionary with two keys, "bar" and "baz". The third example demonstrates how to use explicit type annotations to create a typed configuration object using the `DictConfig` type. Overall, OmegaConf is a powerful package library for managing configurations in Python, and its `from_dict` function is an essential tool for loading configurations from dictionaries.