export type JsonSchema = Record<string, unknown>;
/** A subschema position: a schema object or the boolean schema forms. */
export type SubschemaValue = JsonSchema | boolean;
export declare function isJsonSchemaObject(value: unknown): value is JsonSchema;
/**
 * Sets `target[key]` as an own property, the way `JSON.parse` does. Plain
 * assignment of a property named `__proto__` replaces the object's prototype
 * instead, so a schema map built that way loses the property.
 */
export declare function setOwnProperty(target: JsonSchema, key: string, value: unknown): void;
export interface SubschemaChild {
    value: SubschemaValue;
    /** JSON-pointer-style path segment(s) from the parent, e.g. `/properties/a`. */
    pointer: string;
    keyword: string;
}
/** The direct subschemas of one schema node, in a stable order. */
export declare function subschemasOf(schema: JsonSchema): SubschemaChild[];
/**
 * Replaces subschemas in place, depth first: `rewrite` sees each child and
 * returns what should stand in its position; the result is then descended
 * into. `schema` must be an acyclic tree the caller owns.
 */
export declare function rewriteSubschemas(schema: JsonSchema, rewrite: (value: SubschemaValue, keyword: string) => SubschemaValue): void;
/**
 * Visits `schema` and every subschema beneath it, depth first, with the JSON
 * pointer of each position. Value-bearing keywords (`const`, `enum`,
 * `default`, `examples`) are data, not schemas, and are never entered.
 */
export declare function walkSubschemas(schema: SubschemaValue, visit: (node: SubschemaValue, pointer: string, keyword?: string) => void, pointer?: string, keyword?: string, ancestors?: Set<unknown>): void;