/**
 * WorkflowBuilder - Fluent API for constructing workflows
 */
import type { Workflow, WorkflowState, NodeFn, AddNodeOptions, AddConditionalOptions, AddLoopOptions, AddParallelOptions } from '@cogitator-ai/types';
export declare class WorkflowBuilder<S extends WorkflowState = WorkflowState> {
    private name;
    private state;
    private nodes;
    private conditionals;
    private loops;
    private parallels;
    private entryPointName;
    private usedNames;
    constructor(name: string);
    private registerName;
    /**
     * Set the initial state for the workflow
     */
    initialState(state: S): this;
    /**
     * Set explicit entry point (first node to execute)
     */
    entryPoint(nodeName: string): this;
    /**
     * Add a node to the workflow
     */
    addNode(name: string, fn: NodeFn<S>, options?: AddNodeOptions): this;
    /**
     * Add a conditional routing node
     */
    addConditional(name: string, condition: (state: S) => string | string[], options?: AddConditionalOptions): this;
    /**
     * Add a loop construct
     */
    addLoop(name: string, options: AddLoopOptions): this;
    addParallel(name: string, targets: string[], options?: AddParallelOptions): this;
    /**
     * Build and validate the workflow
     */
    build(): Workflow<S>;
    private validate;
}
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