import { CallHandler, ExecutionContext, NestInterceptor } from '@nestjs/common';
import { PureAbility } from '@casl/ability';
import { Observable } from 'rxjs';
import { ResourcePolicy } from './resource.policy';
export type PolicyRules = {
    filter?: any;
    projection?: any;
};
export declare class ResourcePolicyInterceptor<T extends PureAbility> implements NestInterceptor {
    protected readonly resourcePolicy: ResourcePolicy<T, any>;
    private readonly log;
    constructor(resourcePolicy: ResourcePolicy<T, any>);
    intercept(context: ExecutionContext, next: CallHandler): Observable<any>;
    private checkAbility;
    private aggregatePolicyRules;
}