code: def call_const(self, env):
      return _internal_types.Data(
          self.fname, _cuda_types.Unknown(label="cub_functor")
      )
  
imports: from cupyx.jit import _cuda_types
  from cupyx.jit import _cuda_typerules
  from cupyx.jit import _internal_types
  from cupy_backends.cuda.api import runtime
label_desc: Use image node_id 2 for calling the _CubFunctor obj's underlying member method code with example usage: obj.call_const(env) and returns: _internal_types