import { ConfigurableSchema, ConfigurationSchema, NestedConfigurationSchema } from './schema';
export declare const optionsKey: unique symbol;
export declare const configurationSchema: unique symbol;
export declare const loadedValues: unique symbol;
export declare const KONVENIENT_CONFIGURATION_CLASS = "__konvenient_configuration_class";
export interface ConfigurationOptions {
    pathPrefix?: string;
    envPrefix?: string;
}
export interface FinalizedConfigurationOptions extends Required<ConfigurationOptions> {
    name: string;
}
export interface DecoratedPrototype {
    [optionsKey]: FinalizedConfigurationOptions;
    [configurationSchema]: ConfigurationSchema;
    [KONVENIENT_CONFIGURATION_CLASS]: boolean;
}
export interface DecoratedConstructor {
    prototype: DecoratedPrototype;
    new (): any;
}
export declare type LoadedTarget = {
    [loadedValues]: Record<string, unknown>;
};
/**
 * Marks a class as a configuration class. Configuration classes
 * shall adhere to the following requirements:
 *
 *   * have a default or no argument constructor.
 *
 * @returns The actual decorator applied to the class.
 */
export declare function Configuration(options?: Partial<ConfigurationOptions>): <T>(constructor: new () => T) => new () => T;
/**
 * Marks a field on a configuration class configurable (loadable with convict). Configurable
 * fields shall adhere to the following requirements:
 *
 *   * have a default value.
 *
 * @param propertySchema The convict schema used to load, validate and transform the configuration value.
 * @returns The actual decorator applied to the field.
 */
export declare function Configurable<T = any>(propertySchema?: ConfigurableSchema<T>): (target: any, propertyKey: string) => void;
/**
 * Marks a field on a configuration class as nested configuration. Nested configuration
 * fields shall adhere to the following requirements:
 *
 *   * have a configuration class as their default value.
 *
 * @returns The actual decorator applied to the field.
 */
export declare function Nested(): (target: any, propertyKey: string) => void;
export declare function nestedSchemaOf(target: any): NestedConfigurationSchema;
export declare function isDecoratedPrototype(target: any): target is DecoratedPrototype;
export declare function extractSchemaFromPrototype(target: any): ConfigurationSchema;