/** Authentication types and helpers. */
/** Supported authentication types. */
export declare enum AuthType {
    BEARER = "bearer",
    API_KEY = "apiKey",
    NONE = "none"
}
/** Authentication method for API requests. */
export type AuthMethod = {
    type: AuthType.BEARER;
    token: string;
} | {
    type: AuthType.API_KEY;
    key: string;
    header?: string;
} | {
    type: AuthType.NONE;
};
/** Auth namespace for creating authentication configurations. */
export declare const Auth: {
    /**
     * Bearer token authentication.
     *
     * @example
     * Auth.bearer("your-jwt-token")
     */
    bearer(token: string): AuthMethod;
    /**
     * API key authentication.
     *
     * @example
     * Auth.apiKey("your-api-key")
     * Auth.apiKey("your-api-key", "X-Custom-Header")
     */
    apiKey(key: string, header?: string): AuthMethod;
    /** No authentication. */
    none(): AuthMethod;
};
/** Builds authorization headers from an auth method. */
export declare function buildAuthHeaders(auth: AuthMethod): Record<string, string>;
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