import type { EditableField } from './fields.js';
/** Result of parsing one prompt answer. */
export type Choice = {
    value: string;
} | {
    keep: true;
} | {
    error: string;
};
/**
 * Parse a single numbered-choice answer against a field. Empty input keeps the
 * current value; a 1-based index selects; anything else is an error (re-prompt).
 * Pure — the unit-testable heart of the wizard loop.
 */
export declare function parseChoice(input: string, field: EditableField): Choice;
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