import { StripeResource } from '../StripeResource.js';
import { Discount } from './Discounts.js';
import { Plan } from './Plans.js';
import { Price } from './Prices.js';
import { TaxRate } from './TaxRates.js';
import { Emptyable, MetadataParam, Decimal, PaginationParams, Metadata } from '../shared.js';
import { RequestOptions, Response, ApiListPromise } from '../lib.js';
export declare class SubscriptionItemResource extends StripeResource {
    /**
     * Deletes an item from the subscription. Removing a subscription item from a subscription will not cancel the subscription.
     */
    del(id: string, params?: SubscriptionItemDeleteParams, options?: RequestOptions): Promise<Response<DeletedSubscriptionItem>>;
    /**
     * Retrieves the subscription item with the given ID.
     */
    retrieve(id: string, params?: SubscriptionItemRetrieveParams, options?: RequestOptions): Promise<Response<SubscriptionItem>>;
    /**
     * Updates the plan or quantity of an item on a current subscription.
     */
    update(id: string, params?: SubscriptionItemUpdateParams, options?: RequestOptions): Promise<Response<SubscriptionItem>>;
    /**
     * Returns a list of your subscription items for a given subscription.
     */
    list(params: SubscriptionItemListParams, options?: RequestOptions): ApiListPromise<SubscriptionItem>;
    /**
     * Adds a new item to an existing subscription. No existing items will be changed or replaced.
     */
    create(params: SubscriptionItemCreateParams, options?: RequestOptions): Promise<Response<SubscriptionItem>>;
}
export interface SubscriptionItem {
    /**
     * Unique identifier for the object.
     */
    id: string;
    /**
     * String representing the object's type. Objects of the same type share the same value.
     */
    object: 'subscription_item';
    /**
     * The time period the subscription item has been billed for.
     */
    billed_until?: number;
    /**
     * Define thresholds at which an invoice will be sent, and the related subscription advanced to a new billing period
     */
    billing_thresholds: SubscriptionItem.BillingThresholds | null;
    /**
     * Time at which the object was created. Measured in seconds since the Unix epoch.
     */
    created: number;
    /**
     * The end time of this subscription item's current billing period.
     */
    current_period_end: number;
    /**
     * The start time of this subscription item's current billing period.
     */
    current_period_start: number;
    /**
     * Always true for a deleted object
     */
    deleted?: void;
    /**
     * The discounts applied to the subscription item. Subscription item discounts are applied before subscription discounts. Use `expand[]=discounts` to expand each discount.
     */
    discounts: Array<string | Discount>;
    /**
     * Set of [key-value pairs](https://docs.stripe.com/api/metadata) that you can attach to an object. This can be useful for storing additional information about the object in a structured format.
     */
    metadata: Metadata;
    /**
     * You can now model subscriptions more flexibly using the [Prices API](https://api.stripe.com#prices). It replaces the Plans API and is backwards compatible to simplify your migration.
     *
     * Plans define the base price, currency, and billing cycle for recurring purchases of products.
     * [Products](https://api.stripe.com#products) help you track inventory or provisioning, and plans help you track pricing. Different physical goods or levels of service should be represented by products, and pricing options should be represented by plans. This approach lets you change prices without having to change your provisioning scheme.
     *
     * For example, you might have a single "gold" product that has plans for $10/month, $100/year, €9/month, and €90/year.
     *
     * Related guides: [Set up a subscription](https://docs.stripe.com/billing/subscriptions/set-up-subscription) and more about [products and prices](https://docs.stripe.com/products-prices/overview).
     */
    plan: Plan;
    /**
     * Prices define the unit cost, currency, and (optional) billing cycle for both recurring and one-time purchases of products.
     * [Products](https://api.stripe.com#products) help you track inventory or provisioning, and prices help you track payment terms. Different physical goods or levels of service should be represented by products, and pricing options should be represented by prices. This approach lets you change prices without having to change your provisioning scheme.
     *
     * For example, you might have a single "gold" product that has prices for $10/month, $100/year, and €9 once.
     *
     * Related guides: [Set up a subscription](https://docs.stripe.com/billing/subscriptions/set-up-subscription), [create an invoice](https://docs.stripe.com/billing/invoices/create), and more about [products and prices](https://docs.stripe.com/products-prices/overview).
     */
    price: Price;
    /**
     * The [quantity](https://docs.stripe.com/subscriptions/quantities) of the plan to which the customer should be subscribed.
     */
    quantity?: number;
    /**
     * The `subscription` this `subscription_item` belongs to.
     */
    subscription: string;
    /**
     * The tax rates which apply to this `subscription_item`. When set, the `default_tax_rates` on the subscription do not apply to this `subscription_item`.
     */
    tax_rates: Array<TaxRate> | null;
}
export interface DeletedSubscriptionItem {
    /**
     * Unique identifier for the object.
     */
    id: string;
    /**
     * String representing the object's type. Objects of the same type share the same value.
     */
    object: 'subscription_item';
    /**
     * Always true for a deleted object
     */
    deleted: true;
}
export declare namespace SubscriptionItem {
    interface BillingThresholds {
        /**
         * Usage threshold that triggers the subscription to create an invoice
         */
        usage_gte: number | null;
    }
}
export interface SubscriptionItemCreateParams {
    /**
     * The identifier of the subscription to modify.
     */
    subscription: string;
    /**
     * Define thresholds at which an invoice will be sent, and the subscription advanced to a new billing period. Pass an empty string to remove previously-defined thresholds.
     */
    billing_thresholds?: Emptyable<SubscriptionItemCreateParams.BillingThresholds>;
    /**
     * The coupons to redeem into discounts for the subscription item.
     */
    discounts?: Emptyable<Array<SubscriptionItemCreateParams.Discount>>;
    /**
     * Specifies which fields in the response should be expanded.
     */
    expand?: Array<string>;
    /**
     * Set of [key-value pairs](https://docs.stripe.com/api/metadata) that you can attach to an object. This can be useful for storing additional information about the object in a structured format. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to `metadata`.
     */
    metadata?: MetadataParam;
    /**
     * Controls how Stripe handles payment when a subscription update requires payment and `collection_method=charge_automatically`.
     */
    payment_behavior?: SubscriptionItemCreateParams.PaymentBehavior;
    /**
     * The identifier of the plan to add to the subscription.
     */
    plan?: string;
    /**
     * The ID of the price object.
     */
    price?: string;
    /**
     * Data used to generate a new [Price](https://docs.stripe.com/api/prices) object inline.
     */
    price_data?: SubscriptionItemCreateParams.PriceData;
    /**
     * Determines how to handle [prorations](https://docs.stripe.com/billing/subscriptions/prorations) when the billing cycle changes (e.g., when switching plans, resetting `billing_cycle_anchor=now`, or starting a trial), or if an item's `quantity` changes. The default value is `create_prorations`.
     */
    proration_behavior?: SubscriptionItemCreateParams.ProrationBehavior;
    /**
     * If set, the proration will be calculated as though the subscription was updated at the given time. This can be used to apply the same proration that was previewed with the [upcoming invoice](https://docs.stripe.com/api/invoices/create_preview) endpoint.
     */
    proration_date?: number;
    /**
     * The quantity you'd like to apply to the subscription item you're creating.
     */
    quantity?: number;
    /**
     * A list of [Tax Rate](https://docs.stripe.com/api/tax_rates) ids. These Tax Rates will override the [`default_tax_rates`](https://docs.stripe.com/api/subscriptions/create#create_subscription-default_tax_rates) on the Subscription. When updating, pass an empty string to remove previously-defined tax rates.
     */
    tax_rates?: Emptyable<Array<string>>;
}
export declare namespace SubscriptionItemCreateParams {
    interface BillingThresholds {
        /**
         * Number of units that meets the billing threshold to advance the subscription to a new billing period (e.g., it takes 10 $5 units to meet a $50 [monetary threshold](https://docs.stripe.com/api/subscriptions/update#update_subscription-billing_thresholds-amount_gte))
         */
        usage_gte: number;
    }
    interface Discount {
        /**
         * ID of the coupon to create a new discount for.
         */
        coupon?: string;
        /**
         * ID of an existing discount on the object (or one of its ancestors) to reuse.
         */
        discount?: string;
        /**
         * ID of the promotion code to create a new discount for.
         */
        promotion_code?: string;
    }
    type PaymentBehavior = 'allow_incomplete' | 'default_incomplete' | 'error_if_incomplete' | 'pending_if_incomplete';
    interface PriceData {
        /**
         * Three-letter [ISO currency code](https://www.iso.org/iso-4217-currency-codes.html), in lowercase. Must be a [supported currency](https://stripe.com/docs/currencies).
         */
        currency: string;
        /**
         * The ID of the [Product](https://docs.stripe.com/api/products) that this [Price](https://docs.stripe.com/api/prices) will belong to.
         */
        product: string;
        /**
         * The recurring components of a price such as `interval` and `interval_count`.
         */
        recurring: PriceData.Recurring;
        /**
         * Only required if a [default tax behavior](https://docs.stripe.com/tax/products-prices-tax-categories-tax-behavior#setting-a-default-tax-behavior-(recommended)) was not provided in the Stripe Tax settings. Specifies whether the price is considered inclusive of taxes or exclusive of taxes. One of `inclusive`, `exclusive`, or `unspecified`. Once specified as either `inclusive` or `exclusive`, it cannot be changed.
         */
        tax_behavior?: PriceData.TaxBehavior;
        /**
         * A positive integer in cents (or local equivalent) (or 0 for a free price) representing how much to charge.
         */
        unit_amount?: number;
        /**
         * Same as `unit_amount`, but accepts a decimal value in cents (or local equivalent) with at most 12 decimal places. Only one of `unit_amount` and `unit_amount_decimal` can be set.
         */
        unit_amount_decimal?: Decimal;
    }
    type ProrationBehavior = 'always_invoice' | 'create_prorations' | 'none';
    namespace PriceData {
        interface Recurring {
            /**
             * Specifies billing frequency. Either `day`, `week`, `month` or `year`.
             */
            interval: Recurring.Interval;
            /**
             * The number of intervals between subscription billings. For example, `interval=month` and `interval_count=3` bills every 3 months. Maximum of three years interval allowed (3 years, 36 months, or 156 weeks).
             */
            interval_count?: number;
        }
        type TaxBehavior = 'exclusive' | 'inclusive' | 'unspecified';
        namespace Recurring {
            type Interval = 'day' | 'month' | 'week' | 'year';
        }
    }
}
export interface SubscriptionItemRetrieveParams {
    /**
     * Specifies which fields in the response should be expanded.
     */
    expand?: Array<string>;
}
export interface SubscriptionItemUpdateParams {
    /**
     * Define thresholds at which an invoice will be sent, and the subscription advanced to a new billing period. Pass an empty string to remove previously-defined thresholds.
     */
    billing_thresholds?: Emptyable<SubscriptionItemUpdateParams.BillingThresholds>;
    /**
     * The coupons to redeem into discounts for the subscription item.
     */
    discounts?: Emptyable<Array<SubscriptionItemUpdateParams.Discount>>;
    /**
     * Specifies which fields in the response should be expanded.
     */
    expand?: Array<string>;
    /**
     * Set of [key-value pairs](https://docs.stripe.com/api/metadata) that you can attach to an object. This can be useful for storing additional information about the object in a structured format. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to `metadata`.
     */
    metadata?: Emptyable<MetadataParam>;
    /**
     * Indicates if a customer is on or off-session while an invoice payment is attempted. Defaults to `false` (on-session).
     */
    off_session?: boolean;
    /**
     * Controls how Stripe handles payment when a subscription update requires payment and `collection_method=charge_automatically`.
     */
    payment_behavior?: SubscriptionItemUpdateParams.PaymentBehavior;
    /**
     * The identifier of the new plan for this subscription item.
     */
    plan?: string;
    /**
     * The ID of the price object. One of `price` or `price_data` is required. When changing a subscription item's price, `quantity` is set to 1 unless a `quantity` parameter is provided.
     */
    price?: string;
    /**
     * Data used to generate a new [Price](https://docs.stripe.com/api/prices) object inline. One of `price` or `price_data` is required.
     */
    price_data?: SubscriptionItemUpdateParams.PriceData;
    /**
     * Determines how to handle [prorations](https://docs.stripe.com/billing/subscriptions/prorations) when the billing cycle changes (e.g., when switching plans, resetting `billing_cycle_anchor=now`, or starting a trial), or if an item's `quantity` changes. The default value is `create_prorations`.
     */
    proration_behavior?: SubscriptionItemUpdateParams.ProrationBehavior;
    /**
     * If set, the proration will be calculated as though the subscription was updated at the given time. This can be used to apply the same proration that was previewed with the [upcoming invoice](https://docs.stripe.com/api/invoices/create_preview) endpoint.
     */
    proration_date?: number;
    /**
     * The quantity you'd like to apply to the subscription item you're creating.
     */
    quantity?: number;
    /**
     * A list of [Tax Rate](https://docs.stripe.com/api/tax_rates) ids. These Tax Rates will override the [`default_tax_rates`](https://docs.stripe.com/api/subscriptions/create#create_subscription-default_tax_rates) on the Subscription. When updating, pass an empty string to remove previously-defined tax rates.
     */
    tax_rates?: Emptyable<Array<string>>;
}
export declare namespace SubscriptionItemUpdateParams {
    interface BillingThresholds {
        /**
         * Number of units that meets the billing threshold to advance the subscription to a new billing period (e.g., it takes 10 $5 units to meet a $50 [monetary threshold](https://docs.stripe.com/api/subscriptions/update#update_subscription-billing_thresholds-amount_gte))
         */
        usage_gte: number;
    }
    interface Discount {
        /**
         * ID of the coupon to create a new discount for.
         */
        coupon?: string;
        /**
         * ID of an existing discount on the object (or one of its ancestors) to reuse.
         */
        discount?: string;
        /**
         * ID of the promotion code to create a new discount for.
         */
        promotion_code?: string;
    }
    type PaymentBehavior = 'allow_incomplete' | 'default_incomplete' | 'error_if_incomplete' | 'pending_if_incomplete';
    interface PriceData {
        /**
         * Three-letter [ISO currency code](https://www.iso.org/iso-4217-currency-codes.html), in lowercase. Must be a [supported currency](https://stripe.com/docs/currencies).
         */
        currency: string;
        /**
         * The ID of the [Product](https://docs.stripe.com/api/products) that this [Price](https://docs.stripe.com/api/prices) will belong to.
         */
        product: string;
        /**
         * The recurring components of a price such as `interval` and `interval_count`.
         */
        recurring: PriceData.Recurring;
        /**
         * Only required if a [default tax behavior](https://docs.stripe.com/tax/products-prices-tax-categories-tax-behavior#setting-a-default-tax-behavior-(recommended)) was not provided in the Stripe Tax settings. Specifies whether the price is considered inclusive of taxes or exclusive of taxes. One of `inclusive`, `exclusive`, or `unspecified`. Once specified as either `inclusive` or `exclusive`, it cannot be changed.
         */
        tax_behavior?: PriceData.TaxBehavior;
        /**
         * A positive integer in cents (or local equivalent) (or 0 for a free price) representing how much to charge.
         */
        unit_amount?: number;
        /**
         * Same as `unit_amount`, but accepts a decimal value in cents (or local equivalent) with at most 12 decimal places. Only one of `unit_amount` and `unit_amount_decimal` can be set.
         */
        unit_amount_decimal?: Decimal;
    }
    type ProrationBehavior = 'always_invoice' | 'create_prorations' | 'none';
    namespace PriceData {
        interface Recurring {
            /**
             * Specifies billing frequency. Either `day`, `week`, `month` or `year`.
             */
            interval: Recurring.Interval;
            /**
             * The number of intervals between subscription billings. For example, `interval=month` and `interval_count=3` bills every 3 months. Maximum of three years interval allowed (3 years, 36 months, or 156 weeks).
             */
            interval_count?: number;
        }
        type TaxBehavior = 'exclusive' | 'inclusive' | 'unspecified';
        namespace Recurring {
            type Interval = 'day' | 'month' | 'week' | 'year';
        }
    }
}
export interface SubscriptionItemListParams extends PaginationParams {
    /**
     * The ID of the subscription whose items will be retrieved.
     */
    subscription: string;
    /**
     * Specifies which fields in the response should be expanded.
     */
    expand?: Array<string>;
}
export interface SubscriptionItemDeleteParams {
    /**
     * Delete all usage for the given subscription item. Allowed only when the current plan's `usage_type` is `metered`.
     */
    clear_usage?: boolean;
    /**
     * Controls how Stripe handles payment when a subscription update requires payment and `collection_method=charge_automatically`.
     */
    payment_behavior?: SubscriptionItemDeleteParams.PaymentBehavior;
    /**
     * Determines how to handle [prorations](https://docs.stripe.com/billing/subscriptions/prorations) when the billing cycle changes (e.g., when switching plans, resetting `billing_cycle_anchor=now`, or starting a trial), or if an item's `quantity` changes. The default value is `create_prorations`.
     */
    proration_behavior?: SubscriptionItemDeleteParams.ProrationBehavior;
    /**
     * If set, the proration will be calculated as though the subscription was updated at the given time. This can be used to apply the same proration that was previewed with the [upcoming invoice](https://docs.stripe.com/api/invoices/create_preview) endpoint.
     */
    proration_date?: number;
}
export declare namespace SubscriptionItemDeleteParams {
    type PaymentBehavior = 'allow_incomplete' | 'default_incomplete' | 'error_if_incomplete' | 'pending_if_incomplete';
    type ProrationBehavior = 'always_invoice' | 'create_prorations' | 'none';
}