code: def assert_message(self, in_message):
      self.messages.append(in_message)
  
file_path: tvm/tests/python/relay/utils/assert_diagnostic.py
imports: import tvm
  from tvm import IRModule, get_global_func, register_func, relay
  from tvm.error import DiagnosticError
  from tvm.ir.diagnostics import get_renderer, override_renderer
  from tvm.relay import SpanCheck
  from tvm.relay.transform import AnnotateSpans
  from tvm.runtime import Object
label_desc: Use image node_id 4 for calling the DiagnosticTesting obj's underlying member method code with example usage: obj.assert_message(in_message) without return types