export type ShieldRule<TContext> = IRule<TContext> | ILogicRule<TContext>;
export declare class IRule<TContext> {
    readonly name: string;
    constructor(options: IRuleOptions);
    equals(rule: IRule<TContext>): boolean;
    resolve(ctx: TContext, type: string, path: string, input: {
        [name: string]: any;
    }, rawInput: unknown, options: IOptions<TContext>): Promise<IRuleResult<TContext>>;
}
export interface IRuleOptions {
}
export declare class ILogicRule<TContext> {
    constructor(rules: ShieldRule<TContext>[]);
    getRules(): ShieldRule<TContext>[];
    evaluate(ctx: TContext, type: string, path: string, input: {
        [name: string]: any;
    }, rawInput: unknown, options: IOptions<TContext>): Promise<IRuleResult<TContext>[]>;
    resolve(ctx: TContext, type: string, path: string, input: {
        [name: string]: any;
    }, rawInput: unknown, options: IOptions<TContext>): Promise<IRuleResult<TContext>>;
}
export type IRuleResult<TContext = any> = boolean | string | Error | {
    ctx: Partial<TContext>;
};
export type IRuleFunction<TContext extends Record<string, any> = Record<string, any>> = (ctx: TContext, type: string, path: string, input: {
    [name: string]: any;
}, rawInput: unknown, options: IOptions<TContext>) => IRuleResult<TContext> | Promise<IRuleResult<TContext>>;
export interface IRuleConstructorOptions {
}
export interface IRuleTypeMap<TContext> {
    [key: string]: ShieldRule<TContext> | IRuleFieldMap<TContext> | IRuleTypeMap<TContext>;
}
export interface IRuleFieldMap<TContext> {
    [key: string]: ShieldRule<TContext>;
}
export type IRules<TContext> = ShieldRule<TContext> | IRuleTypeMap<TContext>;
export type IFallbackErrorMapperType<TContext> = (err: unknown, ctx: TContext, type: string, path: string, input: {
    [name: string]: any;
}, rawInput: unknown) => Promise<Error> | Error;
export type IFallbackErrorType<TContext> = Error | IFallbackErrorMapperType<TContext>;
export interface IOptions<TContext> {
    debug: boolean;
    allowExternalErrors: boolean;
    fallbackRule: ShieldRule<TContext>;
    fallbackError?: IFallbackErrorType<TContext>;
}
export interface IOptionsConstructor<TContext> {
    debug?: boolean;
    allowExternalErrors?: boolean;
    fallbackRule?: ShieldRule<TContext>;
    fallbackError?: string | IFallbackErrorType<TContext>;
}
export declare function shield<TContext>(ruleTree: IRules<TContext>, options: IOptions<TContext>): any;