import { EventEmitter } from 'events';
import type { ToolCall } from '../types';
export declare class PromptEngineeringToolCallEngine extends EventEmitter {
    private state;
    private buffer;
    private currentToolCall;
    private streamingToolCallUpdates;
    private messageId;
    private toolCallIdCounter;
    constructor(messageId: string);
    processChunk(chunk: string): void;
    private processBuffer;
    private handleNormalState;
    private handleInToolCallState;
    private handleCollectingToolNameState;
    private handleCollectingToolCallState;
    private parseAndEmitToolCallContent;
    private initializeNewToolCall;
    private emitToolCallChunk;
    private emitContentChunk;
    private completeCurrentToolCall;
    private handleError;
    private generateRandomId;
    getToolCalls(): ToolCall[];
    finalize(): void;
}
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