import type { ReturnInfo, ReturnInfoKind } from 'plpgsql-deparser';
/**
 * Extract return type information from a CreateFunctionStmt AST node.
 *
 * This helper analyzes the function's return type and parameters to determine
 * the correct ReturnInfo for the PL/pgSQL deparser.
 *
 * @param createFunctionStmt - The CreateFunctionStmt AST node
 * @returns ReturnInfo object with the appropriate kind
 */
export declare function getReturnInfo(createFunctionStmt: any): ReturnInfo;
/**
 * Get return info from a ParsedFunction object.
 *
 * @param parsedFunction - A ParsedFunction object from plpgsql-parser
 * @returns ReturnInfo object with the appropriate kind
 */
export declare function getReturnInfoFromParsedFunction(parsedFunction: any): ReturnInfo;
export type { ReturnInfo, ReturnInfoKind };