/**
 * Types allowed in a JSON Schema
 */
export declare type JSONSchemaType = 'string' | 'number' | 'integer' | 'boolean' | 'array' | 'object' | 'null';
/**
 * Subset of the JSON Schema.
 * Types are enforced to validate everything : each value MUST have either 'type' or 'properties' or 'items'.
 * Therefore, unlike the spec, booleans are not allowed as schemas.
 * @see http://json-schema.org/latest/json-schema-validation.html
 * @todo Not all validation features are supported yet : just follow the interface.
 */
export interface JSONSchema {
    /**
     * Type for a primitive value.
     * Not required for objects, just set 'properties'.
     * Not required for arrays, just set 'items'.
     */
    type?: JSONSchemaType | JSONSchemaType[];
    /**
     * List of properties schemas for an object.
     */
    properties?: {
        [k: string]: JSONSchema;
    };
    /**
     * Array of names of the required properties for an object.
     * Properties set as required should be present in 'properties' too.
     * Note that in the last spec, booleans are not supported anymore.
     */
    required?: string[];
    /**
     * Schema for the values of an array.
     * 'type' of values should be a string (not an array of type).
     */
    items?: JSONSchema | JSONSchema[];
    /**
     * Allow other properties, to not fail with existing JSON schemas.
     */
    [k: string]: any;
}