import type { AIMessage } from '@langchain/core/messages';
import type { IDataObject, GenericValue } from 'n8n-workflow';
import type { ZodType } from 'zod';
export type ToolCallRequest = {
    tool: string;
    toolInput: Record<string, unknown>;
    toolCallId: string;
    type?: string;
    log?: string;
    messageLog?: unknown[];
    additionalKwargs?: Record<string, unknown>;
};
export type ToolCallData = {
    action: {
        tool: string;
        toolInput: Record<string, unknown>;
        log: string | number | true | object;
        messageLog?: AIMessage[];
        toolCallId: IDataObject | GenericValue | GenericValue[] | IDataObject[];
        type: string | number | true | object;
    };
    observation: string;
};
export type AgentResult = {
    output: string;
    toolCalls?: ToolCallRequest[];
    intermediateSteps?: ToolCallData[];
};
export type ThinkingContentBlock = {
    type: 'thinking';
    thinking: string;
    signature: string;
};
export type RedactedThinkingContentBlock = {
    type: 'redacted_thinking';
    data: string;
};
export type ToolUseContentBlock = {
    type: 'tool_use';
    id: string;
    name: string;
    input: Record<string, unknown>;
};
export type GeminiThoughtSignatureBlock = {
    thoughtSignature: string;
};
export type ContentBlock = ThinkingContentBlock | RedactedThinkingContentBlock | ToolUseContentBlock | GeminiThoughtSignatureBlock;
export type GoogleThinkingMetadata = {
    thoughtSignature?: string;
};
export type AnthropicThinkingMetadata = {
    thinkingContent?: string;
    thinkingType?: 'thinking' | 'redacted_thinking';
    thinkingSignature?: string;
};
export type HitlMetadata = {
    gatedToolNodeName: string;
    toolName: string;
    originalInput: IDataObject;
};
export type ThinkingMetadata = {
    google?: GoogleThinkingMetadata;
    anthropic?: AnthropicThinkingMetadata;
};
export type RequestResponseMetadata = {
    itemIndex?: number;
    parentNodeName?: string;
    previousRequests?: ToolCallData[];
    iterationCount?: number;
    google?: GoogleThinkingMetadata;
    anthropic?: AnthropicThinkingMetadata;
    hitl?: HitlMetadata;
};
export interface ToolMetadata extends Record<string, unknown> {
    sourceNodeName?: string;
    gatedToolNodeName?: string;
    originalSchema?: ZodType;
    isFromToolkit?: boolean;
}
export declare function isThinkingBlock(block: unknown): block is ThinkingContentBlock;
export declare function isRedactedThinkingBlock(block: unknown): block is RedactedThinkingContentBlock;
export declare function isGeminiThoughtSignatureBlock(block: unknown): block is GeminiThoughtSignatureBlock;