code: def _check_lines(self):
      yield 0, "# -*- coding: utf-8 -*-"
      yield 0, "import sys"
      yield 0, "from metaflow_test import assert_equals, assert_equals_metadata, assert_exception, new_checker"
      yield 0, "def check_results(flow, checker):"
      for line in self._format_method(self.test.check_results):
          yield 1, line
      yield 0, "if __name__ == '__main__':"
      yield 1, "from test_flow import %s" % self.flow_name
      yield 1, "flow = %s(use_cli=False)" % self.flow_name
      yield 1, "check = new_checker(flow)"
      yield 1, "check_results(flow, check)"
  
file_path: metaflow/test/core/metaflow_test/formatter.py
imports: import sys
  import inspect
label_desc: Use image node_id 7 for calling the FlowFormatter obj's underlying member method code with example usage: obj._check_lines() without return types