/**
 * Defines the minimal contract that each payment provider adapter must
 * implement in order to integrate with the orchestrator SDK. Each
 * provider handles initialisation, mounting of secure card form
 * components, and tokenisation of the card details into a provider
 * specific token.
 */
export interface Provider {
    /**
     * Initialise the provider with configuration data from the backend.
     * This may involve loading remote scripts (e.g. Finix.js) and
     * instantiating provider clients. Providers should handle lazy
     * loading internally and ensure init() may be called multiple
     * times without side effects.
     */
    init(config: Record<string, unknown>): Promise<void>;
    /**
     * Mount the provider's secure card input fields into the given
     * container selector. Providers should replace the contents of
     * the container with their own inputs and perform any required
     * styling. This must be called after init().
     */
    mountCardForm(selector: string): Promise<void>;
    /**
     * Tokenise the card details entered by the customer into a
     * provider specific token. This method should resolve with an
     * object containing the token (e.g. payment instrument ID) and
     * any additional data the provider returns.
     */
    tokenize(): Promise<{
        token: string;
        [key: string]: unknown;
    }>;
}
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