code: def _fake_getinstance(self, namespace, **params):
          
  
          iname = params['InstanceName']
          if iname.namespace is None:
              iname.namespace = namespace
  
          self._validate_namespace(namespace)
  
          # If not repo lite, corresponding class must exist.
          if not self._repo_lite:
              if not self._class_exists(iname.classname, namespace):
                  raise CIMError(
                      CIM_ERR_INVALID_CLASS,
                      _format("Class {0!A} for GetInstance of instance {1!A} "
                              "does not exist.", iname.classname, iname))
  
          inst = self._get_instance(iname, namespace,
                                    params['PropertyList'],
                                    params['LocalOnly'],
                                    params['IncludeClassOrigin'],
                                    params['IncludeQualifiers'])
  
          return self._make_tuple([inst])
docs: Implements a mock server responder for
          :meth:`~pywbem.WBEMConnection.GetInstance`.
  
          Gets a single instance from the repository based on the
          InstanceName and filters it for PropertyList, etc.
  
          This method uses a common repository access method _get_instance to
          get, copy, and process the instance.
  
          Raises:
  
              CIMError:  CIM_ERR_INVALID_NAMESPACE, CIM_ERR_INVALID_PARAMETER
                CIM_ERR_NOT_FOUND