export type Step = {
    run<T>(id: string, handler: () => T | Promise<T>): Promise<T>;
};
export type MethodStepScope = {
    kind: 'method';
    ref: string;
    owner: string;
    method: string;
};
export type FunctionStepScope = {
    kind: 'function';
    ref: string;
    slug: string;
};
export type StepScope = MethodStepScope | FunctionStepScope;
export type StepRun = {
    /** The author-provided id, normalized to the local id inside this scope. */
    id: string;
    /** Backend-facing durable key, qualified by the method/function scope. */
    key: string;
    /** Zero-based occurrence for repeated ids in one execution. */
    occurrence: number;
    scope?: StepScope;
};
export declare function requireStepId(id: string): string;
export declare function buildStepRun(id: string, scope: StepScope | undefined, occurrence: number): StepRun;
export declare function roundTripStepResult<T>(id: string, value: T): T;
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