import http from 'http';
import https from 'https';
import * as grpc from '@grpc/grpc-js';
export declare const VERSION: any;
export declare enum Lang {
    Ru = "ru",
    En = "en"
}
export declare const DEFAULT_TIMEOUT: number;
export declare const DEFAULT_LANG_HEADER = "accept-language";
export declare const DEFAULT_PROXY_HEADERS: string[];
export declare const DEFAULT_AXIOS_OPTIONS: {
    maxContentLength: number;
    httpAgent: http.Agent;
    httpsAgent: https.Agent;
};
export declare const DEFAULT_GRPC_OPTIONS: {
    'grpc.max_receive_message_length': number;
    'grpc.keepalive_time_ms': number;
    'grpc.keepalive_timeout_ms': number;
    'grpc.keepalive_permit_without_calls': number;
};
export declare const DEFAULT_PROTO_LOADER_OPTIONS: {
    longs: StringConstructor;
    enums: StringConstructor;
    defaults: boolean;
    oneofs: boolean;
};
/**
 * Byte sizes are taken from ECMAScript Language Specification
 * http://www.ecma-international.org/ecma-262/5.1/
 */
export declare const ECMA_STRING_SIZE = 2;
export declare const ANY_ACTION_SYMBOL = "*";
export declare const RETRYABLE_STATUS_CODES: Array<grpc.status | undefined>;
export declare const RECREATE_SERVICE_CODES: Array<grpc.status | undefined>;
/**
 * Common validation schema for action's parameters. You can use it in GatewayConfig as validationSchema
 * Validates the parameter type: only number, object, or string are allowed.
 * For strings, disallows characters: ".", "?", "#", "/", "\"
 */
export declare const DEFAULT_VALIDATION_SCHEMA: {
    additionalProperties: {
        oneOf: ({
            type: string;
            pattern?: undefined;
        } | {
            type: string;
            pattern: string;
        })[];
    };
};
export declare const AXIOS_RETRY_NAMESPACE = "axios-retry";
export declare const GATEWAY_INVALID_PARAM_VALUE = "GATEWAY_INVALID_PARAM_VALUE";