import { Output } from "./output";
/**
 * Config is a bag of related configuration state.  Each bag contains any number of configuration variables, indexed by
 * simple keys, and each has a name that uniquely identifies it; two bags with different names do not share values for
 * variables that otherwise share the same key.  For example, a bag whose name is `pulumi:foo`, with keys `a`, `b`,
 * and `c`, is entirely separate from a bag whose name is `pulumi:bar` with the same simple key names.  Each key has a
 * fully qualified names, such as `pulumi:foo:a`, ..., and `pulumi:bar:a`, respectively.
 */
export declare class Config {
    /**
     * name is the configuration bag's logical name and uniquely identifies it.  The default is the name of the current
     * project.
     */
    readonly name: string;
    constructor(name?: string);
    /**
     * get loads an optional configuration value by its key, or undefined if it doesn't exist.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    private getImpl;
    /**
     * get loads an optional configuration value by its key, or undefined if it doesn't exist.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    get<K extends string = string>(key: string, opts?: StringConfigOptions<K>): K | undefined;
    /**
     * getSecret loads an optional configuration value by its key, marking it as a secret, or undefined if it
     * doesn't exist.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    getSecret<K extends string = string>(key: string, opts?: StringConfigOptions<K>): Output<K> | undefined;
    private getBooleanImpl;
    /**
     * getBoolean loads an optional configuration value, as a boolean, by its key, or undefined if it doesn't exist.
     * If the configuration value isn't a legal boolean, this function will throw an error.
     *
     * @param key The key to lookup.
     */
    getBoolean(key: string): boolean | undefined;
    /**
     * getSecretBoolean loads an optional configuration value, as a boolean, by its key, making it as a secret
     * or undefined if it doesn't exist. If the configuration value isn't a legal boolean, this function will
     * throw an error.
     *
     * @param key The key to lookup.
     */
    getSecretBoolean(key: string): Output<boolean> | undefined;
    private getNumberImpl;
    /**
     * getNumber loads an optional configuration value, as a number, by its key, or undefined if it doesn't exist.
     * If the configuration value isn't a legal number, this function will throw an error.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    getNumber(key: string, opts?: NumberConfigOptions): number | undefined;
    /**
     * getSecretNumber loads an optional configuration value, as a number, by its key, marking it as a secret
     * or undefined if it doesn't exist.
     * If the configuration value isn't a legal number, this function will throw an error.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    getSecretNumber(key: string, opts?: NumberConfigOptions): Output<number> | undefined;
    private getObjectImpl;
    /**
     * getObject loads an optional configuration value, as an object, by its key, or undefined if it doesn't exist.
     * This routine simply JSON parses and doesn't validate the shape of the contents.
     *
     * @param key The key to lookup.
     */
    getObject<T>(key: string): T | undefined;
    /**
     * getSecretObject loads an optional configuration value, as an object, by its key, marking it as a secret
     * or undefined if it doesn't exist.
     * This routine simply JSON parses and doesn't validate the shape of the contents.
     *
     * @param key The key to lookup.
     */
    getSecretObject<T>(key: string): Output<T> | undefined;
    private requireImpl;
    /**
     * require loads a configuration value by its given key.  If it doesn't exist, an error is thrown.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    require<K extends string = string>(key: string, opts?: StringConfigOptions<K>): K;
    /**
     * require loads a configuration value by its given key, marking it as a secret.  If it doesn't exist, an error
     * is thrown.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    requireSecret<K extends string = string>(key: string, opts?: StringConfigOptions<K>): Output<K>;
    private requireBooleanImpl;
    /**
     * requireBoolean loads a configuration value, as a boolean, by its given key.  If it doesn't exist, or the
     * configuration value is not a legal boolean, an error is thrown.
     *
     * @param key The key to lookup.
     */
    requireBoolean(key: string): boolean;
    /**
     * requireSecretBoolean loads a configuration value, as a boolean, by its given key, marking it as a secret.
     * If it doesn't exist, or the configuration value is not a legal boolean, an error is thrown.
     *
     * @param key The key to lookup.
     */
    requireSecretBoolean(key: string): Output<boolean>;
    private requireNumberImpl;
    /**
     * requireNumber loads a configuration value, as a number, by its given key.  If it doesn't exist, or the
     * configuration value is not a legal number, an error is thrown.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    requireNumber(key: string, opts?: NumberConfigOptions): number;
    /**
     * requireSecretNumber loads a configuration value, as a number, by its given key, marking it as a secret.
     * If it doesn't exist, or the configuration value is not a legal number, an error is thrown.
     *
     * @param key The key to lookup.
     * @param opts An options bag to constrain legal values.
     */
    requireSecretNumber(key: string, opts?: NumberConfigOptions): Output<number>;
    private requireObjectImpl;
    /**
     * requireObject loads a configuration value as a JSON string and deserializes the JSON into a JavaScript object. If
     * it doesn't exist, or the configuration value is not a legal JSON string, an error is thrown.
     *
     * @param key The key to lookup.
     */
    requireObject<T>(key: string): T;
    /**
     * requireSecretObject loads a configuration value as a JSON string and deserializes the JSON into a JavaScript
     * object, marking it as a secret. If it doesn't exist, or the configuration value is not a legal JSON
     * string, an error is thrown.
     *
     * @param key The key to lookup.
     */
    requireSecretObject<T>(key: string): Output<T>;
    /**
     * fullKey turns a simple configuration key into a fully resolved one, by prepending the bag's name.
     *
     * @param key The key to lookup.
     */
    private fullKey;
}
/**
 * StringConfigOptions may be used to constrain the set of legal values a string config value may contain.
 */
export interface StringConfigOptions<K extends string = string> {
    /**
     * The legal enum values. If it does not match, a ConfigEnumError is thrown.
     */
    allowedValues?: K[];
    /**
     * The minimum string length. If the string is not this long, a ConfigRangeError is thrown.
     */
    minLength?: number;
    /**
     * The maximum string length. If the string is longer than this, a ConfigRangeError is thrown.
     */
    maxLength?: number;
    /**
     * A regular expression the string must match. If it does not match, a ConfigPatternError is thrown.
     */
    pattern?: string | RegExp;
}
/**
 * NumberConfigOptions may be used to constrain the set of legal values a number config value may contain.
 */
export interface NumberConfigOptions {
    /**
     * The minimum number value, inclusive. If the number is less than this, a ConfigRangeError is thrown.
     */
    min?: number;
    /**
     * The maximum number value, inclusive. If the number is greater than this, a ConfigRangeError is thrown.
     */
    max?: number;
}