code: def test_fake_quantize_maxpool():
      x = relay.var("x", shape=[1, 3, 224, 224], dtype="int8")
  
      zero = relay.const(0)
      x = relay.qnn.op.dequantize(x, relay.const(2.0), zero)
      op = relay.op.nn.max_pool2d(x, [3, 3])
      op = relay.qnn.op.quantize(op, relay.const(2.0), zero)
  
      mod = tvm.IRModule.from_expr(op)
      fake_quantized_op_freqs = (
          relay.analysis.list_fake_quantized_op_freqs(mod)
      )
  
      assert dict(fake_quantized_op_freqs) == {"nn.max_pool2d": 1}
  
file_path: tvm/tests/python/relay/test_analysis_extract_fake_quantized_ops.py
imports: import tvm
  from tvm import relay
label_desc: Use image node_id 4 for calling a global function with example usage: test_fake_quantize_maxpool() without return types