code: def test_ill_arg(self):
      with self.assertRaises(ValueError):
          MLPBlock(hidden_size=128, mlp_dim=512, dropout_rate=5.0)
  
file_path: MONAI/tests/test_mlp.py
imports: from __future__ import annotations
  import unittest
  import numpy
  import torch
  from parameterized import parameterized
  from monai.networks import eval_mode
  from monai.networks.blocks.mlp import MLPBlock
label_desc: Use image node_id 2 for calling the TestMLPBlock obj's underlying member method code with example usage: obj.test_ill_arg() without return types