import type { SpecialExpressionNode, SymbolNode } from '../../parser/types';
import type { BuiltinSpecialExpression } from '../interface';
import type { specialExpressionTypes } from '../specialExpressionTypes';
export type DefinedNode = SpecialExpressionNode<[typeof specialExpressionTypes['defined?'], SymbolNode]>;
export declare const definedSpecialExpression: BuiltinSpecialExpression<boolean, DefinedNode>;