import { Context } from '../context';
export declare const ErrorHandler: unique symbol;
export declare const DEFALUT_ERROR_HANDLER_PRIORITY = 1;
export declare const HTTP_ERROR_HANDLER_PRIORITY: number;
export declare const VALIDATION_ERRORS_ERROR_HANDLER_PRIORITY: number;
export interface ErrorHandler {
    /**
     * The priority value must be greater than the default Error Handler's priority: DEFALUT_ERROR_HANDLER_PRIORITY, otherwise it will never be executed.
     */
    readonly priority: number;
    canHandle(ctx: Context, err: Error): Promise<boolean>;
    handle(ctx: Context, err: Error): Promise<void>;
}
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