def METHOD_NAME():
    content = {
        "example": {
            "nested": {"path": "first one", "more_nested": {"value": "found it!"}},
            "nested/path": "uh oh",
        },
        "reference_to_nested_path": {"$ref": "#/example/nested/path"},
        "reference_to_nested_nested_value": {"$ref": "#/example/nested/more_nested/value"},
    }
    config = resolver.preprocess_manifest(content)
    assert config["example"]["nested"]["path"] == "first one"
    assert config["example"]["nested/path"] == "uh oh"
    assert config["reference_to_nested_path"] == "uh oh"
    assert config["example"]["nested"]["more_nested"]["value"] == "found it!"
    assert config["reference_to_nested_nested_value"] == "found it!"