import { LogLevel } from "./logLevels";
/**
 * Describes an entry inb the log
 */
export interface LogEntry {
    readonly level: LogLevel;
    readonly time: Date;
    readonly category: string;
    readonly message: string;
}
/**
 * Log entry implementation that formats the message on demand
 * @internal
 */
export declare class LoggerEntry implements LogEntry {
    readonly level: LogLevel;
    readonly category: string;
    readonly args: unknown[];
    readonly time: Date;
    private formattedMessage?;
    /**
     * Formatted message of the log entry (lazy)
     */
    get message(): string;
    constructor(level: LogLevel, category: string, args: unknown[]);
    /**
     * Format the message from the arguments array
     * @returns Formatted message
     */
    private formatMessage;
    /**
     * Format a single argument for the log message
     * @param arg Argument to format
     * @param index Index of the argument
     * @returns Formatted argument
     */
    private formatArg;
    private formatArgs;
}
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