/**
 * This functions takes the given ingredient
 * and checks it against the non-vegan list of ingredients
 * @param ingredientToCheck - the ingredient to check
 * @return if ingredient is in nonVeganList or if all ingredient words are in nonVeganList. Otherwise true
 */
declare function isVeganIngredient(ingredientToCheck: string): boolean;
/**
 * This functions takes a given list of ingredients
 * and checks them against the non-vegan list of ingredients
 * @param ingredientsToCheck - the lit of ingredients to check
 * @return if ingredients are not in nonVeganList
 */
declare function isVeganIngredientList(ingredientsToCheck: string[]): boolean;
/**
 * This functions takes a given list of ingredients
 * and checks them against the non-vegan list of ingredients
 * @param ingredientsToCheck - the lit of ingredients to check
 * @return Array of ingredients that are non-vegan
 */
declare function containsNonVeganIngredients(ingredientsToCheck: string[]): string[];

/**
 * This functions takes a given list of ingredients
 * and checks them against the non-vegan and the can-be-vegan list of ingredients
 * @param ingredientsToCheck - the list of ingredients to check
 * @return with nonvegan and flagged ingredients
 */
declare function checkIngredients(ingredientsToCheck: string[]): {
    nonvegan: string[];
    flagged: string[];
};

/**
 * This functions returns the currently selected ingredients language
 * @return The two-letter code (ISO 639-1) of the currently selected ingredients language
 */
declare function getIngredientsLanguage(): string;
/**
 * This functions sets the ingredients language
 * @param value - The two-letter code (ISO 639-1) of the ingredients language to set
 * @throws Will throw an error if validation fails
 */
declare function setIngredientsLanguage(value: string | null | undefined): void;

export { checkIngredients, containsNonVeganIngredients, getIngredientsLanguage, isVeganIngredient, isVeganIngredientList, setIngredientsLanguage };