code: def test_casted_no_strip(self):
      self.assertEqual("(int)(1+2)", strip_parens("(int)(1+2)"))
  
imports: import unittest
  from PIL import Image
  from tinygrad.helpers import Context, ContextVar, merge_dicts, strip_parens, prod, round_up, fetch, fully_flatten, from_mv, to_mv
  from tinygrad.shape.symbolic import Variable, NumNode
label_desc: Use image node_id 3 for calling the TestStripParens obj's underlying member method code with example usage: obj.test_casted_no_strip() without return types