import type { SequenceAction, Sequence, SequenceCondition, SequenceEvent, SequenceVariable } from '../structures/index.js';
import type { SequenceItemType, SequenceItemTypeName } from '../structures/index.js';
export declare class BaseItem {
    readonly type: SequenceItemTypeName | null;
    constructor(type?: SequenceItemTypeName);
    private _checkType;
    isAction(): this is SequenceAction;
    isCondition(): this is SequenceCondition;
    isEvent(): this is SequenceEvent;
    isSequence(): this is Sequence;
    isSequenceItem(): this is SequenceItemType;
    isSequenceActionNode(): this is SequenceAction | SequenceCondition;
    isSequenceNode(): this is SequenceAction | SequenceCondition | SequenceEvent;
    isVariable(): this is SequenceVariable;
}
//# sourceMappingURL=_base.d.ts.map