import { BaseEntity, ObjectLiteral } from 'typeorm';
import { PiiMaskingMethod, PiiMetadataEntityType } from './types/pii.type';
export declare type EntityId = string | symbol | number | EntityId[];
export declare type BeforeDisposalFunc = (type: PiiMetadataEntityType, entity: ObjectLiteral | BaseEntity) => Promise<void> | void;
export interface PiiComplianceServiceOptions {
    replaceChar?: '*' | '-' | string;
    beforeDisposal?: BeforeDisposalFunc;
}
export declare class PiiComplianceService {
    protected readonly options?: PiiComplianceServiceOptions | undefined;
    constructor(options?: PiiComplianceServiceOptions | undefined);
    private _sorted?;
    private entities;
    process(entityId: EntityId, beforeDisposal?: BeforeDisposalFunc): Promise<void>;
    process(group: string, entityId: EntityId, beforeDisposal?: BeforeDisposalFunc): Promise<void>;
    static transform(value: any, maskingMethod: PiiMaskingMethod, replaceChar?: string): Promise<any>;
}