/**
 * Format a number as a string for pgtyped numeric columns
 *
 * @param value - Numeric value (number or string)
 * @returns String representation suitable for pgtyped numeric fields
 *
 * @remarks
 * - pgtyped expects numeric values as strings to preserve precision
 * - Handles both number and string inputs
 * - Preserves decimal precision without rounding
 * - Negative values are supported
 *
 * @throws {Error} If value cannot be converted to a valid numeric string
 *
 * @example
 * ```typescript
 * formatNumeric(100); // '100'
 * formatNumeric(100.50); // '100.5'
 * formatNumeric(-42.99); // '-42.99'
 * formatNumeric('123.45'); // '123.45'
 * ```
 */
export declare function formatNumeric(value: number | string): string;
/**
 * Format money amount as string (convenience wrapper for formatNumeric)
 *
 * @param amount - Money amount (typically in cents or smallest currency unit)
 * @returns String representation suitable for pgtyped
 *
 * @example
 * ```typescript
 * formatMoney(10050); // '10050' (e.g., $100.50 in cents)
 * formatMoney(-2599); // '-2599' (e.g., -$25.99 in cents)
 * ```
 */
export declare function formatMoney(amount: number | string): string;
/**
 * Convert decimal amount to string preserving precision
 *
 * @param amount - Decimal amount
 * @param decimals - Number of decimal places (default: 2)
 * @returns String with fixed decimal places
 *
 * @example
 * ```typescript
 * formatDecimal(100.5, 2); // '100.50'
 * formatDecimal(42.123456, 4); // '42.1235'
 * formatDecimal(1000, 0); // '1000'
 * ```
 */
export declare function formatDecimal(amount: number, decimals?: number): string;
/**
 * Parse a numeric string back to a number
 *
 * @param value - String representation of a number
 * @returns Parsed number
 *
 * @throws {Error} If value cannot be parsed as a number
 *
 * @example
 * ```typescript
 * parseNumeric('100.50'); // 100.5
 * parseNumeric('-42'); // -42
 * ```
 */
export declare function parseNumeric(value: string): number;