export declare const C_TASKS = "tasks";
export declare const XS_TYPE_BINDING_SUBELEM = "entity_ref_has_subelement";
export declare const XS_TYPE_BINDING_TASK_GROUP = "task_group_binding";
export declare const XS_TYPE_BINDING_TASK_DEPENDS_ON = "task_dependency_binding";
export declare const TN_TASKS_CLEANUP = "tasks_cleanup";
/**
 * Classname of TaskQueueWorker
 */
export declare const CL_TASK_QUEUE_WORKER = "TaskQueueWorker";
/**
 * Classname of TaskRunnerRegistry
 */
export declare const CL_TASK_RUNNER_REGISTRY = "TaskRunnerRegistry";
export declare const TASKRUN_STATE_NEXT = "next";
export declare const TASKRUN_STATE_RUN = "run";
export declare const TASKRUN_STATE_DONE = "done";
export declare const TASKRUN_STATE_FINISHED = "finished";
export declare const TASKRUN_STATE_FINISH_PROMISE = "finish_promise";
export declare const TASKRUN_STATE_UPDATE = "update";
export declare const TASK_STATE_STOPPED = "stopped";
export declare const TASK_STATE_STARTED = "started";
export declare const TASK_STATE_RUNNING = "running";
export declare const TASK_STATE_ERRORED = "errored";
export declare const TASK_STATE_ENQUEUE = "enqueue";
export declare const TASK_STATE_PROPOSED = "proposed";
export declare const TASK_STATE_REQUEST_ERROR = "request_error";
export declare const K_CLS_TASKS: string;
export declare const K_CLS_TASK_DESCRIPTORS = "task_descriptors";
export declare type TASK_STATES = 'enqueue' | 'proposed' | 'started' | 'stopped' | 'running' | 'errored' | 'request_error';
export declare type TASK_RUNNER_SPEC = string | {
    name: string;
    incomings?: any;
};
export declare type TASK_PROPERTY_TYPE = 'runtime' | 'incoming' | 'outgoing';
export declare const K_TASK_TYPE = "taskType";
export declare const K_TASK_NAME = "taskName";
export declare const K_TASK_PERMISSIONS = "permissions";
export declare const K_TASK_GROUPS = "groups";
export declare const K_TASK_NODE_INFOS = "nodeInfos";
export declare const K_TASK_DESCRIPTION = "description";
export declare const K_TASK_REMOTE = "remote";
export declare const C_NAMESPACE = "namespace";
export declare const C_NAME = "name";
/**
 * Use title for storing class name in json schema
 */
export declare const K_TASK_CLASS_NAME = "title";
export declare const K_EXCHANGE_REF_TYPE = "propertyType";
export declare enum TaskRefType {
    CALLBACK = 0,
    CLASS = 1,
    INSTANCE = 2,
    GROUP = 3,
    REMOTE = 4
}