import { PackageJson } from 'type-fest';
import { RuleType } from '../types/rule-type';
import { Severity } from '../types/severity';
import { OptionalObjectRuleConfig } from '../types/lint-function';
import { LintResult } from '../types/lint-result';
export declare const ruleType = RuleType.OptionalObject;
export declare const lint: (packageJsonData: PackageJson | any, severity: Severity, config: OptionalObjectRuleConfig) => LintResult;