import { type ZodType } from 'zod';
import { PromptFile } from './prompt-fs';
import { Logger } from './interfaces';
export interface PromptString {
    type: 'string';
    content: () => Promise<string>;
}
export interface StepDef {
    name: string;
    type: 'streaming-response' | 'streaming-detect' | 'text';
    prompt: PromptFile | PromptString;
    schema?: ZodType;
}
export interface StepRegistry {
    addStep(def: StepDef): void;
}
/**
 * a stub registry, that just prints step in logs
 */
export declare function createStubRegistry(logger: Logger): StepRegistry;
export declare function stdPrompt(prompt: PromptFile | string): PromptFile | PromptString;
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