import { ToolContext } from './ToolContext';
/**
 * Function declaration schema
 */
export interface FunctionDeclaration {
    name: string;
    description: string;
    parameters: any;
}
/**
 * Options for creating a BaseTool
 */
export interface BaseToolOptions {
    /**
     * The name of the tool
     */
    name: string;
    /**
     * The description of the tool
     */
    description: string;
    /**
     * Whether the tool is a long-running operation
     */
    isLongRunning?: boolean;
}
/**
 * Base class for all tools
 */
export declare abstract class BaseTool {
    /**
     * The name of the tool
     */
    readonly name: string;
    /**
     * The description of the tool
     */
    readonly description: string;
    /**
     * Whether the tool is a long-running operation
     */
    readonly isLongRunning: boolean;
    /**
     * Create a new base tool
     * @param options Options for the base tool
     */
    constructor(options: BaseToolOptions);
    /**
     * Internal method to get the function declaration
     * @returns The function declaration for this tool
     */
    protected _getDeclaration(): FunctionDeclaration | null;
    /**
     * Get the declaration for this tool
     * @returns The function declaration for this tool
     */
    getDeclaration(): FunctionDeclaration | null;
    /**
     * Get the parameters for this tool
     * @returns The parameters for this tool
     */
    getParameters(): any;
    /**
     * Execute the tool
     * @param params The parameters for the tool execution
     * @param context The context for the tool execution
     * @returns The result of the tool execution
     */
    abstract execute(params: Record<string, any>, context: ToolContext): Promise<any>;
    /**
     * Find a tool in the LLM request that has function declarations
     * @param llmRequest The LLM request to search in
     * @returns The tool with function declarations, or null if not found
     */
    private _findToolWithFunctionDeclarations;
    /**
     * Get the API variant (Vertex AI or Google AI)
     */
    protected get _apiVariant(): string;
}