import { JSONSchema4 } from 'json-schema';
/**
 * Transforms JSON Schema `const` keywords into equivalent single-value `enum` arrays.
 * This normalization allows the existing enum handling logic to process both patterns uniformly.
 *
 * @example
 * Input:  { type: 'string', const: 'tab', description: 'Tab indent' }
 * Output: { type: 'string', enum: ['tab'], description: 'Tab indent' }
 *
 * @param def - The JSON schema definition to transform
 * @returns The transformed schema with `const` converted to `enum`
 */
export declare function constToEnum(def: JSONSchema4): JSONSchema4;