/**
 * Utility functions for formatting Log Analytics query results
 */
/**
 * Column presets for different use cases.
 * - minimal: Quick overview, reduces token count significantly
 * - investigation: Error investigation with exception details
 * - full: All columns (null = no filtering)
 */
export declare const COLUMN_PRESETS: Record<string, string[] | null>;
/**
 * Table type definition for Log Analytics results
 */
export interface LogAnalyticsTable {
    columns: {
        name: string;
        type: string;
    }[];
    rows: any[][];
}
/**
 * Filter table columns based on a list of column names.
 * Returns a new table with only the specified columns.
 * If columnsToInclude is null, returns the original table.
 */
export declare function filterColumns(table: LogAnalyticsTable, columnsToInclude: string[] | null): LogAnalyticsTable;
/**
 * Resolve column preset or custom columns to an array of column names.
 * Returns null if no filtering should be applied.
 */
export declare function resolveColumnPreset(preset?: string, customColumns?: string[]): string[] | null;
/**
 * Format Log Analytics table result as markdown table
 */
export declare function formatTableAsMarkdown(table: {
    columns: {
        name: string;
        type: string;
    }[];
    rows: any[][];
}): string;
/**
 * Convert Log Analytics query result to CSV
 */
export declare function formatTableAsCSV(table: {
    columns: {
        name: string;
        type: string;
    }[];
    rows: any[][];
}): string;
/**
 * Extract key insights from generic log data
 */
export declare function analyzeLogs(logsTable: any, tableName?: string): string;
/**
 * Extract key insights from Azure Function logs
 */
export declare function analyzeFunctionLogs(logsTable: any): string;
/**
 * Extract key insights from Azure Function errors
 */
export declare function analyzeFunctionErrors(errorsTable: any): string;
/**
 * Analyze function execution statistics
 */
export declare function analyzeFunctionStats(statsTable: any): string;
/**
 * Generate recommendations based on log analysis
 */
export declare function generateRecommendations(analysis: {
    errorCount?: number;
    successRate?: number;
    severityDistribution?: Record<string, number>;
    exceptionTypes?: Record<string, number>;
}): string[];
/**
 * Sanitize error messages to remove sensitive information
 */
export declare function sanitizeErrorMessage(message: string): string;
/**
 * Parse and validate ISO 8601 duration strings
 */
export declare function parseTimespan(timespan: string): {
    valid: boolean;
    error?: string;
};
/**
 * Get common timespan presets
 */
export declare function getTimespanPresets(): Record<string, string>;
/**
 * Format a single log entry for display
 */
export declare function formatLogEntry(timestamp: string, severity: number | string, message: string, additionalFields?: Record<string, any>): string;
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