import { Type } from "./type";
export declare const JSON_SCHEMA_VERSION: "https://json-schema.org/draft/2020-12/schema";
type TopLevel<T> = T & {
    $schema: typeof JSON_SCHEMA_VERSION;
    title: string;
};
type Annotated<T> = T & {
    description?: string;
};
export type JSONValue = null | string | number | boolean | Array<JSONValue> | {
    [key: string]: JSONValue;
};
export type JSONSchema = Annotated<{
    type: "string";
}> | Annotated<{
    type: "number";
}> | Annotated<{
    type: "boolean";
}> | Annotated<{
    type: "null";
}> | Annotated<{}> | Annotated<{
    type: "object";
    required: string[];
    properties: {
        [key: string]: JSONSchema;
    };
    additionalProperties?: false | JSONSchema;
}> | Annotated<{
    type: "object";
    properties: {};
    additionalProperties?: JSONSchema;
}> | Annotated<{
    type: "array";
    items?: JSONSchema;
}> | Annotated<{
    allOf: JSONSchema[];
}> | Annotated<{
    anyOf: JSONSchema[];
}> | Annotated<{
    enum: Array<JSONValue>;
}> | Annotated<{
    const: JSONValue;
}>;
type Options = {
    errorOnValidations?: boolean;
    errorOnIs?: boolean;
    errorOnNever?: boolean;
};
export declare function toJSONSchema(title: string, type: Type<any>, opts?: Options): TopLevel<JSONSchema>;
export {};