/**
 * Linter configuration.
 */
import { type LinterConfig } from './common';
/**
 * Superstruct schema for the linter rules config object.
 */
export declare const linterRulesSchema: import("superstruct").Struct<Record<string, import("./severity").AnySeverity | import("./common").LinterRuleConfigArray> | undefined, null>;
/**
 * Superstruct schema for the linter config object properties. It is necessary to
 * separate this from the schema for the whole config object because we reuse it
 * in the CLI config object.
 */
export declare const linterConfigPropsSchema: {
    root: import("superstruct").Struct<boolean | undefined, null>;
    extends: import("superstruct").Struct<string[] | undefined, import("superstruct").Struct<string, null>>;
    allowInlineConfig: import("superstruct").Struct<boolean | undefined, null>;
    syntax: import("superstruct").Struct<("Common" | "AdblockPlus" | "UblockOrigin" | "AdGuard")[] | undefined, import("superstruct").Struct<"Common" | "AdblockPlus" | "UblockOrigin" | "AdGuard", {
        Common: "Common";
        AdblockPlus: "AdblockPlus";
        UblockOrigin: "UblockOrigin";
        AdGuard: "AdGuard";
    }>>;
    rules: import("superstruct").Struct<Record<string, import("./severity").AnySeverity | import("./common").LinterRuleConfigArray> | undefined, null>;
};
/**
 * Superstruct schema for the linter rule config (used for validation).
 */
export declare const linterConfigSchema: import("superstruct").Struct<{
    root?: boolean | undefined;
    extends?: string[] | undefined;
    allowInlineConfig?: boolean | undefined;
    syntax?: ("Common" | "AdblockPlus" | "UblockOrigin" | "AdGuard")[] | undefined;
    rules?: Record<string, import("./severity").AnySeverity | import("./common").LinterRuleConfigArray> | undefined;
}, {
    root: import("superstruct").Struct<boolean | undefined, null>;
    extends: import("superstruct").Struct<string[] | undefined, import("superstruct").Struct<string, null>>;
    allowInlineConfig: import("superstruct").Struct<boolean | undefined, null>;
    syntax: import("superstruct").Struct<("Common" | "AdblockPlus" | "UblockOrigin" | "AdGuard")[] | undefined, import("superstruct").Struct<"Common" | "AdblockPlus" | "UblockOrigin" | "AdGuard", {
        Common: "Common";
        AdblockPlus: "AdblockPlus";
        UblockOrigin: "UblockOrigin";
        AdGuard: "AdGuard";
    }>>;
    rules: import("superstruct").Struct<Record<string, import("./severity").AnySeverity | import("./common").LinterRuleConfigArray> | undefined, null>;
}>;
/**
 * Default linter configuration.
 */
export declare const defaultLinterConfig: LinterConfig;
/**
 * Merges two configuration objects using deepmerge. Practically, this means that
 * the `extend` object will be merged into the `initial` object.
 *
 * @param initial The initial config object.
 * @param extend The config object to extend the initial config with.
 *
 * @returns The merged config object.
 *
 * @example
 * If you have the following config (called `initial` parameter):
 * ```json
 * {
 *   "syntax": ["Common"],
 *   "rules": {
 *     "rule1": "error",
 *     "rule2": "warn"
 *   }
 * }
 * ```
 * And you want to extend it with the following config (called `extend` parameter):
 * ```json
 * {
 *   "syntax": ["AdGuard"],
 *   "rules": {
 *     "rule2": "off",
 *   },
 * }
 * ```
 * The result will be:
 * ```json
 * {
 *   "syntax": ["AdGuard"],
 *   "rules": {
 *     "rule1": "error",
 *     "rule2": "off"
 *   }
 * }
 * ```
 */
export declare function mergeConfigs(initial: LinterConfig, extend: Partial<LinterConfig>): LinterConfig;
/**
 * Merges two configuration objects using deepmerge.merge().
 * Practically, this means that the `extend` object will be merged into the `initial` object.
 *
 * It is very similar to {@link mergeConfigs|mergeConfigs()} function, but the order of parameters is reversed.
 *
 * @param extend The config object to extend the initial config with.
 * @param initial The initial config object.
 *
 * @returns The merged config object.
 */
export declare function mergeConfigsReverse(extend: Partial<LinterConfig>, initial: LinterConfig): LinterConfig;