import type { TableConfigImpl } from "../schema/table.js";
import type { ColumnConfig } from "../types/index.js";
/**
 * Type guard to check if a value is a ColumnConfig
 */
export declare function isColumnConfig(val: unknown): val is ColumnConfig;
/**
 * Type guard to check if a value is a TableConfigImpl
 */
export declare function isTableConfig(val: unknown): val is TableConfigImpl<string, Record<string, ColumnConfig>>;
/**
 * Type guard to check if a value has the TableConfigSymbol
 */
export declare function hasTableSymbol(val: unknown): val is Record<symbol, TableConfigImpl<string, Record<string, ColumnConfig>>>;
/**
 * Safely get table config from a table object
 * Throws an error if the symbol is not present
 */
export declare function getTableConfigSafe<TName extends string, TColumns extends Record<string, ColumnConfig<any, any, any, any>>>(table: unknown): TableConfigImpl<TName, TColumns>;
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