/**
 * Enum for supported authentication scheme types.
 */
export declare enum AuthSchemeType {
    API_KEY = "apiKey",
    HTTP = "http",
    OAUTH2 = "oauth2",
    OPEN_ID_CONNECT = "openIdConnect",
    SERVICE_ACCOUNT = "serviceAccount"
}
/**
 * Enum for OAuth2 grant types.
 */
export declare enum OAuthGrantType {
    CLIENT_CREDENTIALS = "client_credentials",
    AUTHORIZATION_CODE = "authorization_code",
    IMPLICIT = "implicit",
    PASSWORD = "password",
    REFRESH_TOKEN = "refresh_token"
}
/**
 * Interface for OpenIdConnectWithConfig, matching the Python class.
 */
export interface OpenIdConnectWithConfig {
    type?: AuthSchemeType;
    authorization_endpoint: string;
    token_endpoint: string;
    userinfo_endpoint?: string;
    revocation_endpoint?: string;
    token_endpoint_auth_methods_supported?: string[];
    grant_types_supported?: string[];
    scopes?: string[];
    [key: string]: any;
}
/**
 * SecuritySchemeConfig is a union of SecurityScheme and OpenIdConnectWithConfig.
 * In TypeScript, SecurityScheme can be any object with a 'type' property.
 */
export type SecuritySchemeConfig = {
    type: AuthSchemeType;
    [key: string]: any;
} | OpenIdConnectWithConfig;
/**
 * Utility function to get OAuthGrantType from an OAuthFlows-like object.
 */
export declare function getOAuthGrantTypeFromFlow(flow: any): OAuthGrantType | undefined;
/**
 * 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>;
}