import { BpmnType } from '../Constants';
import { Activity } from './ActivityBase';
/**
 * Describes a BPMN ServiceTask.
 * A ServiceTask is used to delegate a BPMN Task to an external system.
 */
export type ServiceTask = Activity & {
    readonly bpmnType: BpmnType.serviceTask;
    /**
     * The invocation to be used when an HTTP ServiceTask is used.
     * @deprecated This property is no longer supported. Use "customType" instead.
     */
    invocation?: MethodInvocation;
    /**
     * The ServiceTasks type.
     * Currently only supports 'external' and 'internal'.
     */
    type: ServiceTaskType;
    /**
     * The topic to use in conjunction with external ServiceTasks.
     */
    topic?: string;
    /**
     * The DataContract to validate the payload.
     */
    dataContract?: string;
    /**
     * The payload to use in conjunction with external ServiceTasks.
     */
    payload?: string;
    /**
     * If set to 'true', the Service Task will fail, if it is not processed after the first lock ends.
     */
    isSingleTry?: boolean;
    /**
     * The type of ServiceTask. Determines how the ServiceTask is processed.
     */
    customType?: string;
};
/**
 * Describes all currently supported ServiceTask types.
 */
export declare enum ServiceTaskType {
    external = "external",
    internal = "internal"
}
/**
 * Used by HTTP ServiceTasks.
 * This contains the definition for a method invocation.
 * @deprecated This property is no longer supported. Use "ServiceTask.customType" instead.
 */
export type MethodInvocation = {
    module: string;
    method: string;
    params: string;
};