import type { PostgrestError } from '@supabase/postgrest-js';
/**
 * Holds the data necessary to translate a Postgres constraint name into a user-facing error.
 *
 * @private Internal helper for Supabase-backed collections
 */
export type UniqueConstraintTranslation = {
    /**
     * The suffix of the constraint name that should trigger this translation.
     */
    readonly suffix: string;
    /**
     * Builds the domain-specific error to throw when the constraint matches.
     */
    readonly buildError: () => Error;
};
/**
 * Converts a Supabase unique constraint violation into a domain-specific error.
 *
 * @param error - Resulting Postgrest error from Supabase.
 * @param translations - Array of translations keyed by constraint suffix.
 * @returns A translated error when the constraint suffix matches, otherwise `null`.
 *
 * @private Internal helper for Supabase-backed collections
 */
export declare function translateSupabaseUniqueConstraintError(error: PostgrestError | null, translations: ReadonlyArray<UniqueConstraintTranslation>): Error | null;