import type { IoHelper } from '../io/private';
export interface ISdkLogger {
    trace?: (...content: any[]) => void;
    debug: (...content: any[]) => void;
    info: (...content: any[]) => void;
    warn: (...content: any[]) => void;
    error: (...content: any[]) => void;
}
export declare class IoHostSdkLogger implements ISdkLogger {
    private readonly ioHelper;
    constructor(ioHelper: IoHelper);
    private notify;
    trace(..._content: any[]): void;
    debug(..._content: any[]): void;
    /**
     * Info is called mostly (exclusively?) for successful API calls
     *
     * Payload:
     *
     * (Note the input contains entire CFN templates, for example)
     *
     * ```
     * {
     *   clientName: 'S3Client',
     *   commandName: 'GetBucketLocationCommand',
     *   input: {
     *     Bucket: '.....',
     *     ExpectedBucketOwner: undefined
     *   },
     *   output: { LocationConstraint: 'eu-central-1' },
     *   metadata: {
     *     httpStatusCode: 200,
     *     requestId: '....',
     *     extendedRequestId: '...',
     *     cfId: undefined,
     *     attempts: 1,
     *     totalRetryDelay: 0
     *   }
     * }
     * ```
     */
    info(...content: any[]): void;
    warn(...content: any[]): void;
    /**
     * Error is called mostly (exclusively?) for failing API calls
     *
     * Payload (input would be the entire API call arguments).
     *
     * ```
     * {
     *   clientName: 'STSClient',
     *   commandName: 'GetCallerIdentityCommand',
     *   input: {},
     *   error: AggregateError [ECONNREFUSED]:
     *       at internalConnectMultiple (node:net:1121:18)
     *       at afterConnectMultiple (node:net:1688:7) {
     *     code: 'ECONNREFUSED',
     *     '$metadata': { attempts: 3, totalRetryDelay: 600 },
     *     [errors]: [ [Error], [Error] ]
     *   },
     *   metadata: { attempts: 3, totalRetryDelay: 600 }
     * }
     * ```
     */
    error(...content: any[]): void;
}
/**
 * This can be anything.
 *
 * For debug, it seems to be mostly strings.
 * For info, it seems to be objects.
 *
 * Stringify and join without separator.
 */
export declare function formatSdkLoggerContent(content: any[]): string;
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