docs: def find_comp_by_target(self, target):
          '''Finds a component using a TargetComponent or one of its subclasses.
  
          @param A @ref TargetComponent object or subclass of @ref
          TargetComponent.
          @return A Component object matching the target.
          @raises MissingComponentError
  
          '''
          for comp in self._components:
              if comp.id == target.component_id and \
                      comp.instance_name == target.instance_name:
                  return comp
          raise MissingComponentError