code: def test_reduce_relu(self):
      Tensor.no_grad = True
      x = Tensor.rand(1, 12, 128, 256)
      x = x.sum(keepdim=True).relu()
      x.numpy()
      Tensor.no_grad = False
  
file_path: tinygrad/test/test_conv.py
imports: import unittest
  import numpy
  from tinygrad.tensor import Tensor, Device
label_desc: Use image node_id 11 for calling the TestConv obj's underlying member method code with example usage: obj.test_reduce_relu() without return types