import type { Styles } from '../payments/types';
export interface BoltConfig {
    publishableKey: string;
    environment?: 'production' | 'sandbox' | 'staging';
    language?: string;
}
export declare class Bolt {
    readonly publishableKey: string;
    readonly environment: 'production' | 'sandbox' | 'staging';
    readonly baseUrl: string;
    readonly apiUrl: string;
    readonly language: string;
    private onPageStyles?;
    constructor(config: BoltConfig);
    configureOnPageStyles(styles: Styles): void;
    getOnPageStyles(): Styles | undefined;
    /**
     * Returns the standard HTTP headers required for Bolt REST API calls.
     * Centralised here so every API caller uses a consistent header name.
     */
    apiHeaders(): Record<string, string>;
}
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