__all__ = ["MockMeshEngine", "PluginRegistry"]

def __getattr__(name):
    if name == "MockMeshEngine":
        from mockmesh.core.engine import MockMeshEngine
        return MockMeshEngine
    if name == "PluginRegistry":
        from mockmesh.core.registry import PluginRegistry
        return PluginRegistry
    raise AttributeError(name)
