import type { Nullable } from '@voiceflow/common';
import type { NodeType } from './constants.js';
import type { BaseNode, BaseStep, NodeNextID, NodeVariablesMappings } from './utils/index.js';
export type VariableMapping = [Nullable<string>, Nullable<string>][];
export interface StepData {
    diagramID: Nullable<string>;
    variableMap: Nullable<{
        inputs: VariableMapping;
        outputs: VariableMapping;
    }>;
}
export interface Step<Data = StepData> extends BaseStep<Data> {
    type: NodeType.FLOW;
}
export interface Node extends BaseNode, NodeNextID {
    type: NodeType.FLOW;
    diagram_id?: string;
    variable_map?: NodeVariablesMappings;
}
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