import type { QueryNode } from '../base.js';
import { VariableAssignmentQueryNode } from '../variables.js';
/**
 * Traverses recursively through Unary/Binary operations, extracts all variable definitions and
 * replaces them by their variable nodes
 *
 * The variableAssignmentsList variable will be modified to contain all extracted variable
 * assignments.
 */
export declare function extractVariableAssignments(node: QueryNode, variableAssignmentsList: VariableAssignmentQueryNode[]): QueryNode;