/**
 * Log severity levels (RFC 5424, matching MCP logging levels)
 */
export type LogLevel = "debug" | "info" | "notice" | "warning" | "error" | "critical" | "alert" | "emergency";
/**
 * Parameters for a log entry
 */
export interface LogParams {
    level: LogLevel;
    data: unknown;
    logger?: string;
}
/**
 * Logger interface definition
 */
export interface ILogger {
    sendLog(args: LogParams): void;
}
/**
 * Console Logger implementation
 *
 * Outputs to stderr to avoid interfering with stdio transport.
 * The MCP logging capability is deprecated as of protocol revision 2026-07-28
 * (SEP-2577); stderr logging is the suggested migration path.
 */
export declare class ConsoleLogger implements ILogger {
    sendLog(args: LogParams): void;
}