import { PromptTemplate } from '@langchain/core/prompts';
import { LangGraphRunnableConfig } from '@langchain/langgraph';
import { IGraphNode } from '../../../graphs';
import { LLMProvider } from '../../../types';
import { DbQueryState } from '../state';
export declare class ClassifyChangeNode implements IGraphNode<DbQueryState> {
    private readonly llm;
    prompt: PromptTemplate<import("@langchain/core/prompts").ParamsFromFString<"\n<instructions>\nYou are given the original description of a SQL query and a new description that includes user feedback.\nYour task is to classify the level of change required to transform the original query into the new one.\n\nClassify as one of:\n- **minor**: Small tweaks such as changing a filter value, adjusting a limit, adding/removing a single condition, or renaming an alias.\n- **major**: Structural changes like adding/removing joins, changing grouping logic, adding subqueries, or significantly altering the WHERE clause.\n- **rewrite**: The intent of the query has fundamentally changed, requiring a completely new query from scratch.\n</instructions>\n\n<original-description>\n{originalDescription}\n</original-description>\n\n<new-description>\n{newDescription}\n</new-description>\n\n<output-instructions>\nReturn ONLY one of: minor, major, rewrite\nDo not include any other text, explanation, or formatting.\n</output-instructions>">, any>;
    constructor(llm: LLMProvider);
    execute(state: DbQueryState, config: LangGraphRunnableConfig): Promise<DbQueryState>;
    private parseChangeType;
}