content: import importlib
  
  __attributes = {
      'OctreeRenderer': 'octree_renderer',
      'GaussianRenderer': 'gaussian_render',
      'MeshRenderer': 'mesh_renderer',
  }
  
  __submodules = []
  
  __all__ = list(__attributes.keys()) + __submodules
  
  def __getattr__(name):
      if name not in globals():
          if name in __attributes:
              module_name = __attributes[name]
              module = importlib.import_module(f".{module_name}", __name__)
              globals()[name] = getattr(module, name)
          elif name in __submodules:
              module = importlib.import_module(f".{name}", __name__)
              globals()[name] = module
          else:
              raise AttributeError(f"module {__name__} has no attribute {name}")
      return globals()[name]
  
  
  # For Pylance
  if __name__ == '__main__':
      from .octree_renderer import OctreeRenderer
      from .gaussian_render import GaussianRenderer
      from .mesh_renderer import MeshRenderer