export declare class SchemaDisplayService {
    /**
     * Format catalog validation result for display.
     * Returns lines for console output, or JSON string if jsonOutput is true.
     */
    formatCatalogValidation(result: any, jsonOutput: boolean): string[];
    /**
     * Format field explanation for display.
     * Returns lines for console output, or JSON string if jsonOutput is true.
     */
    formatFieldExplanation(field: any, jsonOutput: boolean): string[];
    /**
     * Format table schema for display.
     * Returns lines for console output, or JSON string if jsonOutput is true.
     */
    formatTableSchema(schema: any, jsonOutput: boolean): string[];
}
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