Used by Variable/Connection.

https://github.com/apache/airflow/blob/894741e311ffd642e036b80d3b1b5d53c3747cad/airflow/secrets/metastore.py#L32

encoded_op["label"] = encoded_op["task_id"]
        
        op_extra_links_from_plugin = {}
        if "_operator_name" not in encoded_op:
            encoded_op["_operator_name"] = encoded_op["_task_type"]
        
        if cls._load_operator_extra_links:
            from airflow import plugins_manager
            plugins_manager.initialize_extra_operators_links_plugins()
            if plugins_manager.operator_extra_links is None:
                raise AirflowException("Can not load plugins")
            for ope in plugins_manager.operator_extra_links:
                for operator in ope.operators:
                    if (
                        operator.__name__ == encoded_op["_task_type"]
                        and operator.__module__ == encoded_op["_task_module"]
                    ):
                        op_extra_links_from_plugin.update({ope.name: ope})
            
            
            
            
            if op_extra_links_from_plugin and "_operator_extra_links" not in encoded_op:
                setattr(op, "operator_extra_links", list(op_extra_links_from_plugin.values()))
        for k, v in encoded_op.items():
            
            if k == "_is_dummy":
                k = "_is_empty"
            if k in ("_outlets", "_inlets"):