code: def _check_method(self, node, results):
      method = getattr(
          self, "_" + results["method"][0].value.encode("ascii")
      )
      if callable(method):
          if "module" in results:
              return method
          else:
              sub = (unicode(results["obj"]),)
              invocation_str = unicode(method.invocation) % sub
              self.warning(
                  node, "You should use '%s' here." % invocation_str
              )
      return None
  
file_path: catboost/contrib/tools/python/src/Lib/lib2to3/fixes/fix_operator.py
imports: from lib2to3 import fixer_base
  from lib2to3.fixer_util import Call, Name, String, touch_import
label_desc: Use image node_id 11 for calling the FixOperator obj's underlying member method code with example usage: obj._check_method(node, results) and returns: None, method