content: 
  from torch.utils.ffi import _wrap_function
  from ._correlation import lib as _lib, ffi as _ffi
  
  __all__ = []
  def _import_symbols(locals):
      for symbol in dir(_lib):
          fn = getattr(_lib, symbol)
          if callable(fn):
              locals[symbol] = _wrap_function(fn, _ffi)
          else:
              locals[symbol] = fn
          __all__.append(symbol)
  
  _import_symbols(locals())
  