/**
 * Resolves a property value for a specific source index
 * @param value - Single string value or array of values
 * @param sourceIndex - Index of the current source
 * @param totalSources - Total number of sources
 * @param propertyName - Name of the property being resolved (for error messages)
 * @returns The resolved string value for the source
 * @internal
 */
export declare function resolvePropertyForSource(value: unknown, sourceIndex: number, totalSources: number, propertyName: string): unknown;
/**
 * Resolves the column value for a specific source index
 * @param column - Single column string or array of columns
 * @param sourceIndex - Index of the current source
 * @param totalSources - Total number of sources
 * @returns The resolved column string for the source
 * @internal
 */
export declare function resolveColumnForSource(column: string | string[] | undefined, sourceIndex: number, totalSources: number): unknown;
