import { FlowNode } from '../Base/index';
import { BpmnType } from '../Constants';
/**
 * Contains all possible Gateway directions.
 *
 * Mixed Gateways are currently not supported.
 * */
export declare enum GatewayDirection {
    Unspecified = "unspecified",
    Converging = "converging",
    Diverging = "diverging",
    Mixed = "mixed"
}
/**
 * The base type for gateways.
 */
export type Gateway = FlowNode & {
    /**
     * Determines the direction of the gateway.
     *
     * If no incoming and/or no outgoing SequenceFlows are associated with the
     * gateway, the direction will be 'unspecified', effectively rendering this
     * gateway non-executable.
     */
    gatewayDirection: GatewayDirection;
};
/**
 * Describes a ComplexGateway.
 *
 * Currently not supported.
 */
export type ComplexGateway = Gateway & {
    readonly bpmnType: BpmnType.complexGateway;
};
/**
 * Describes an EventBasedGateway.
 *
 * These gateways are used to direct the Process across a specific path, based on annotated catch events.
 */
export type EventBasedGateway = Gateway & {
    readonly bpmnType: BpmnType.eventBasedGateway;
};
/**
 * Describes an ExclusiveGateway.
 *
 * These gateways are used to direct the process to a specific conditional branch.
 */
export type ExclusiveGateway = Gateway & {
    readonly bpmnType: BpmnType.exclusiveGateway;
    /**
     * Optional: The ID of the Sequence Flow to take, if no other Sequence Flows have a fulfilled condition.
     */
    defaultOutgoingSequenceFlowId?: string;
};
/**
 * Describes an InclusiveGateway.
 *
 * They are used to run multiple conditional branches in parallel.
 */
export type InclusiveGateway = Gateway & {
    readonly bpmnType: BpmnType.inclusiveGateway;
    /**
     * Optional: The ID of the Sequence Flow to take, if no other Sequence Flows have a fulfilled condition.
     */
    defaultOutgoingSequenceFlowId?: string;
};
/**
 * Describes a ParallelGateway.
 *
 * These gateways are used to run multiple branches in parallel.
 */
export type ParallelGateway = Gateway & {
    readonly bpmnType: BpmnType.parallelGateway;
};