import { OnModuleInit } from "@nestjs/common";
import AWS from "aws-sdk";
import { TGetParamOptions } from "../interfaces/config-backend.interface";
import { BaseConfigurationBackend } from "./base-config-backend";
import { EnvironmentVariablesConfigBackend } from "./environment-variables-backend.provider";
export declare class AWSParameterStoreConfigBackend extends BaseConfigurationBackend implements OnModuleInit {
    private readonly ssmClient;
    readonly envVariablesBackend: EnvironmentVariablesConfigBackend;
    static readonly configManifestFileName = "config.json";
    protected data: {
        [key: string]: AWS.SSM.Parameter;
    };
    /**
     * Refresh interval for parameter values, in seconds.
     */
    private readonly refreshInterval;
    constructor(ssmClient: AWS.SSM, envVariablesBackend: EnvironmentVariablesConfigBackend);
    get(key: string, options?: TGetParamOptions): any;
    onModuleInit(): Promise<void>;
    loadParameters(): Promise<void>;
    private getParameterNames;
    private getParametersByName;
    private getParametersByPath;
    private loadParametersIntoCache;
}
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