/**
 * Base interface for authentication schemes
 */
export interface AuthScheme {
    /**
     * The type of authentication scheme
     */
    type: string;
    /**
     * Generate authentication headers for HTTP requests
     * @param credentials The credentials to use for authentication
     * @returns The headers to include in HTTP requests
     */
    generateHeaders: (credentials: any) => Record<string, string>;
}
/**
 * API key authentication scheme
 */
export declare class ApiKeyAuthScheme implements AuthScheme {
    type: string;
    private headerName;
    /**
     * Initializes the API key authentication scheme
     * @param headerName The name of the header to include the API key in
     */
    constructor(headerName?: string);
    /**
     * Generate authentication headers for HTTP requests
     * @param apiKey The API key to include in the headers
     * @returns The headers to include in HTTP requests
     */
    generateHeaders(apiKey: string): Record<string, string>;
}
/**
 * Bearer token authentication scheme
 */
export declare class BearerAuthScheme implements AuthScheme {
    type: string;
    /**
     * Generate authentication headers for HTTP requests
     * @param token The bearer token to include in the headers
     * @returns The headers to include in HTTP requests
     */
    generateHeaders(token: string): Record<string, string>;
}
/**
 * Basic authentication scheme
 */
export declare class BasicAuthScheme implements AuthScheme {
    type: string;
    /**
     * Generate authentication headers for HTTP requests
     * @param credentials The credentials to use for authentication
     * @param credentials.username The username for basic authentication
     * @param credentials.password The password for basic authentication
     * @returns The headers to include in HTTP requests
     */
    generateHeaders(credentials: {
        username: string;
        password: string;
    }): Record<string, string>;
}