/**
 * Extraction functions for parameters, type parameters, signatures, and type info.
 */
import type { TSESTree } from '@typescript-eslint/typescript-estree';
import type { TypeInfo, SignatureInfo } from '../types';
/**
 * Extracts signature information from a function-like node.
 */
export declare function extractSignatureInfo(source: string, node: TSESTree.FunctionDeclaration | TSESTree.TSDeclareFunction | TSESTree.TSMethodSignature | TSESTree.TSCallSignatureDeclaration | TSESTree.TSConstructSignatureDeclaration | TSESTree.MethodDefinition | TSESTree.ArrowFunctionExpression | TSESTree.FunctionExpression): SignatureInfo;
/**
 * Extracts basic type information from an AST node (without TypeChecker).
 */
export declare function extractBasicTypeInfo(source: string, node: TSESTree.Node): TypeInfo;
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