import ts from 'typescript';
import { Context } from '../../context';
import { PropertyReflection } from './reflection';
import { TypeReflection } from '../_type/reflection';
export declare function hasQuestionToken(symbol: ts.Symbol): boolean;
export declare function filterUndefined(typeReflection: TypeReflection): TypeReflection;
export declare function visitProperty(symbol: ts.Symbol, ctx: Context): PropertyReflection;
export declare function getSymbolParent(symbol: ts.Symbol): ts.Symbol | undefined;
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