Lunderberg commented on issue #17269:
URL: https://github.com/apache/tvm/issues/17269#issuecomment-2299628244

   I assume there's a typo and that `cls.transform_params_7` is supposed to be 
`cls.transform_params_2`.  With that, I can reproduce your error.
   
   It looks like this is a limitation in the `LazyTransformParams`, that it 
expects a tuple of outputs to be produced within the function, rather than 
being a return value from a subroutine.
   
   * Use `LazyGetInput` and `LazySetOutput`, which are intended to replace 
`LazyTransformParams`.  These add callback arguments rather than performing 
lazy-loading through the global `"get_item"` or `"set_item"` functions, and 
don't have the same limitations for tuple outputs.
   
   * If you only need `transform_params` and not `transform_params_2`, you 
could mark `transform_params_2` as private, then use 
`relax.transform.InlinePrivateFunctions()`.  This would move the `(D,D)` tuple 
into `transform_params`, working around the current limitation of 
`LazyTransformParams`.


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